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KASAN: use-after-free Read in f2fs_truncate_data_blocks_range

Status: upstream: reported C repro on 2023/05/12 15:50
Bug presence: origin:upstream
Labels: missing-backport
[Documentation on labels]
Reported-by: syzbot+33be3c5ec9ecadd6fe14@syzkaller.appspotmail.com
First crash: 1041d, last: 18d
Cause bisection: failed (error log, bisect log)
  
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Bug presence (4)
Date Name Commit Repro Result
2023/08/11 android14-6.1 (ToT) d7dacaa439c7 C [report] KASAN: slab-out-of-bounds Read in f2fs_truncate_data_blocks_range
2023/05/12 lts (merge base) be100a8460e3 C [report] KASAN: use-after-free Read in f2fs_truncate_data_blocks_range
2023/05/12 upstream (ToT) 47a2ee5d4a0b C [report] KASAN: slab-use-after-free Read in f2fs_truncate_data_blocks_range
2023/08/11 upstream (ToT) 29d99aae13cf C Didn't crash
▶ ▼ Similar bugs (5)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-5-15 KASAN: use-after-free Read in f2fs_truncate_data_blocks_range origin:lts 19 C 4 29d 202d 0/2 upstream: reported C repro on 2025/08/28 23:47
android-5-10 KASAN: use-after-free Read in f2fs_truncate_data_blocks_range 19 C error error 8 72d 1041d 0/2 upstream: reported C repro on 2023/05/12 18:24
android-54 KASAN: use-after-free Read in f2fs_truncate_data_blocks_range 19 C 3 327d 1041d 0/2 upstream: reported C repro on 2023/05/12 11:37
upstream KASAN: slab-use-after-free Read in f2fs_truncate_data_blocks_range f2fs 19 C error 1 1001d 997d 23/29 fixed on 2023/10/12 12:47
upstream KASAN: slab-out-of-bounds Read in f2fs_truncate_data_blocks_range f2fs 17 1 192d 188d 0/29 auto-obsoleted due to no activity on 2025/12/06 05:03
▶ ▼ Last patch testing requests (6)
Created Duration User Patch Repo Result
2026/03/14 19:58 6m retest repro android14-6.1 error
2026/03/14 19:58 3m retest repro android14-6.1 error
2026/02/22 14:46 6m retest repro android14-6.1 report log
2026/02/22 14:46 8m retest repro android14-6.1 report log
2025/12/04 01:15 11m retest repro android14-6.1 report log
2025/09/24 06:33 8m retest repro android14-6.1 report log
▶ ▼ Fix bisection attempts (20)
Created Duration User Patch Repo Result
2025/05/06 23:35 5m bisect fix android14-6.1 error job log
2025/04/05 09:12 1h11m bisect fix android14-6.1 OK (0) job log log
2025/03/01 21:14 59m bisect fix android14-6.1 OK (0) job log log
2025/01/29 00:36 2h41m bisect fix android14-6.1 OK (0) job log log
2024/12/22 14:16 1h24m bisect fix android14-6.1 OK (0) job log log
2024/11/09 09:58 1h31m bisect fix android14-6.1 OK (0) job log log
2024/10/07 02:59 2h16m bisect fix android14-6.1 OK (0) job log log
2024/08/24 18:55 44m bisect fix android14-6.1 OK (0) job log log
2024/07/23 23:13 1h02m bisect fix android14-6.1 OK (0) job log log
2024/06/08 10:26 1h09m bisect fix android14-6.1 OK (0) job log log
2024/05/09 02:14 48m bisect fix android14-6.1 OK (0) job log log
2024/04/04 12:47 4h47m bisect fix android14-6.1 OK (0) job log log
2024/03/05 07:32 55m bisect fix android14-6.1 OK (0) job log log
2024/01/27 19:58 47m bisect fix android14-6.1 OK (0) job log log
2023/12/27 12:19 46m bisect fix android14-6.1 OK (0) job log log
2023/11/27 05:50 1h13m bisect fix android14-6.1 OK (0) job log log
2023/10/27 13:50 50m bisect fix android14-6.1 OK (0) job log log
2023/09/24 00:01 50m bisect fix android14-6.1 OK (0) job log log
2023/08/11 07:30 1h51m bisect fix android14-6.1 OK (0) job log log
2023/06/22 22:23 26m bisect fix android14-6.1 OK (0) job log log

Sample crash report:
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
==================================================================
BUG: KASAN: use-after-free in f2fs_truncate_data_blocks_range+0x6d5/0xed0 fs/f2fs/file.c:635
Read of size 4 at addr ffff888121a29000 by task syz.2.17/373

CPU: 0 PID: 373 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 print_address_description+0x71/0x200 mm/kasan/report.c:316
 print_report+0x4a/0x60 mm/kasan/report.c:420
 kasan_report+0x122/0x150 mm/kasan/report.c:524
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:350
 f2fs_truncate_data_blocks_range+0x6d5/0xed0 fs/f2fs/file.c:635
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>

Allocated by task 314:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_alloc_info+0x25/0x30 mm/kasan/generic.c:505
 __kasan_slab_alloc+0x72/0x80 mm/kasan/common.c:334
 kasan_slab_alloc include/linux/kasan.h:202 [inline]
 slab_post_alloc_hook+0x4f/0x2d0 mm/slab.h:768
 slab_alloc_node mm/slub.c:3382 [inline]
 slab_alloc mm/slub.c:3392 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3399 [inline]
 kmem_cache_alloc+0x16e/0x330 mm/slub.c:3408
 dst_alloc+0x16a/0x1e0 net/core/dst.c:92
 ip6_dst_alloc net/ipv6/route.c:345 [inline]
 icmp6_dst_alloc+0xf9/0x520 net/ipv6/route.c:3308
 ndisc_send_skb+0x2a5/0xcc0 net/ipv6/ndisc.c:493
 ndisc_send_ns+0xd4/0x160 net/ipv6/ndisc.c:671
 addrconf_dad_work+0xa1e/0x14d0 net/ipv6/addrconf.c:4245
 process_one_work+0x71f/0xc40 kernel/workqueue.c:2302
 worker_thread+0xa29/0x11e0 kernel/workqueue.c:2449
 kthread+0x281/0x320 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Freed by task 314:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_free_info+0x31/0x50 mm/kasan/generic.c:516
 ____kasan_slab_free+0x132/0x180 mm/kasan/common.c:242
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:250
 kasan_slab_free include/linux/kasan.h:178 [inline]
 slab_free_hook mm/slub.c:1750 [inline]
 slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1776
 slab_free mm/slub.c:3712 [inline]
 kmem_cache_free+0x12d/0x300 mm/slub.c:3737
 dst_destroy+0x209/0x2e0 net/core/dst.c:124
 dst_destroy_rcu+0x19/0x20 net/core/dst.c:137
 rcu_do_batch+0x52a/0xbc0 kernel/rcu/tree.c:2297
 rcu_core+0x5c3/0xe80 kernel/rcu/tree.c:2557
 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2574
 handle_softirqs+0x1d7/0x600 kernel/softirq.c:642
 __do_softirq+0xb/0xd kernel/softirq.c:680

Last potentially related work creation:
 kasan_save_stack+0x3a/0x60 mm/kasan/common.c:46
 __kasan_record_aux_stack+0xb6/0xc0 mm/kasan/generic.c:486
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:496
 __call_rcu_common kernel/rcu/tree.c:2807 [inline]
 call_rcu+0xcf/0xf90 kernel/rcu/tree.c:2926
 call_rcu_hurry include/linux/rcupdate.h:117 [inline]
 dst_release+0x123/0x190 net/core/dst.c:181
 refdst_drop include/net/dst.h:256 [inline]
 skb_dst_drop include/net/dst.h:268 [inline]
 __dev_queue_xmit+0x921/0x34b0 net/core/dev.c:4325
 dev_queue_xmit include/linux/netdevice.h:3085 [inline]
 neigh_resolve_output+0x6f5/0x7f0 net/core/neighbour.c:1563
 neigh_output include/net/neighbour.h:552 [inline]
 ip6_finish_output2+0x1606/0x18a0 net/ipv6/ip6_output.c:138
 __ip6_finish_output net/ipv6/ip6_output.c:205 [inline]
 ip6_finish_output+0x5f9/0xbb0 net/ipv6/ip6_output.c:216
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x1fa/0x410 net/ipv6/ip6_output.c:237
 dst_output include/net/dst.h:453 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ndisc_send_skb+0x7dc/0xcc0 net/ipv6/ndisc.c:513
 ndisc_send_ns+0xd4/0x160 net/ipv6/ndisc.c:671
 addrconf_dad_work+0xa1e/0x14d0 net/ipv6/addrconf.c:4245
 process_one_work+0x71f/0xc40 kernel/workqueue.c:2302
 worker_thread+0xa29/0x11e0 kernel/workqueue.c:2449
 kthread+0x281/0x320 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

The buggy address belongs to the object at ffff888121a29000
 which belongs to the cache ip6_dst_cache of size 248
The buggy address is located 0 bytes inside of
 248-byte region [ffff888121a29000, ffff888121a290f8)

The buggy address belongs to the physical page:
page:ffffea0004868a40 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x121a29
flags: 0x4000000000000200(slab|zone=1)
raw: 4000000000000200 0000000000000000 dead000000000122 ffff888108879b00
raw: 0000000000000000 00000000000c000c 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 314, tgid 314 (kworker/0:2), ts 43044760449, free_ts 42707003457
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1f5/0x210 mm/page_alloc.c:2670
 prep_new_page+0x1c/0x110 mm/page_alloc.c:2677
 get_page_from_freelist+0x2d12/0x2d80 mm/page_alloc.c:4583
 __alloc_pages+0x1d9/0x480 mm/page_alloc.c:5897
 alloc_slab_page+0x6e/0xf0 include/linux/gfp.h:-1
 allocate_slab mm/slub.c:1967 [inline]
 new_slab+0x98/0x3d0 mm/slub.c:2020
 ___slab_alloc+0x6bd/0xb20 mm/slub.c:3177
 __slab_alloc+0x5e/0xa0 mm/slub.c:3263
 slab_alloc_node mm/slub.c:3348 [inline]
 slab_alloc mm/slub.c:3392 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3399 [inline]
 kmem_cache_alloc+0x1b0/0x330 mm/slub.c:3408
 dst_alloc+0x16a/0x1e0 net/core/dst.c:92
 ip6_dst_alloc net/ipv6/route.c:345 [inline]
 icmp6_dst_alloc+0xf9/0x520 net/ipv6/route.c:3308
 ndisc_send_skb+0x2a5/0xcc0 net/ipv6/ndisc.c:493
 ndisc_send_ns+0xd4/0x160 net/ipv6/ndisc.c:671
 addrconf_dad_work+0xa1e/0x14d0 net/ipv6/addrconf.c:4245
 process_one_work+0x71f/0xc40 kernel/workqueue.c:2302
 worker_thread+0xa29/0x11e0 kernel/workqueue.c:2449
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1578 [inline]
 free_pcp_prepare mm/page_alloc.c:1652 [inline]
 free_unref_page_prepare+0x742/0x750 mm/page_alloc.c:3618
 free_unref_page_list+0x117/0x8c0 mm/page_alloc.c:3769
 release_pages+0xaf2/0xb50 mm/swap.c:1048
 __pagevec_release+0x71/0xe0 mm/swap.c:1068
 pagevec_release include/linux/pagevec.h:71 [inline]
 folio_batch_release include/linux/pagevec.h:135 [inline]
 invalidate_mapping_pagevec+0x450/0x640 mm/truncate.c:584
 invalidate_mapping_pages+0x27/0x30 mm/truncate.c:608
 f2fs_flush_buffered_write fs/f2fs/file.c:4817 [inline]
 f2fs_file_write_iter+0x7c1/0x2610 fs/f2fs/file.c:5028
 do_iter_readv_writev fs/read_write.c:-1 [inline]
 do_iter_write+0x665/0xb40 fs/read_write.c:861
 vfs_writev+0x339/0x5f0 fs/read_write.c:934
 do_writev+0x14e/0x2c0 fs/read_write.c:977
 __do_sys_writev fs/read_write.c:1050 [inline]
 __se_sys_writev fs/read_write.c:1047 [inline]
 __x64_sys_writev+0x7d/0x90 fs/read_write.c:1047
 x64_sys_call+0xad/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:21
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

Memory state around the buggy address:
 ffff888121a28f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888121a28f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff888121a29000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff888121a29080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc
 ffff888121a29100: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
==================================================================
F2FS-fs (loop2): access invalid blkaddr:269333248
CPU: 1 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:4294936705
CPU: 1 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:314
CPU: 1 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:84803914
CPU: 0 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:269332864
CPU: 0 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:4294936705
CPU: 0 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:2220460512
CPU: 0 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:2220353504
CPU: 0 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:4294901760
CPU: 0 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:4294941513
CPU: 1 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:564303832
CPU: 1 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:4294936705
CPU: 1 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:750498432
CPU: 1 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:4294936705
CPU: 1 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:767
CPU: 1 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:16777216
CPU: 1 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:2750181887
CPU: 1 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:128
CPU: 0 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:767
CPU: 0 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:16777216
CPU: 0 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:2750181887
CPU: 1 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:564302032
CPU: 1 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:4294936705
CPU: 1 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:564302032
CPU: 1 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:4294936705
CPU: 0 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:4142109888
CPU: 0 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8877615fac R14: 00007f8877615fa0 R15: 00007f8877615fa0
 </TASK>
F2FS-fs (loop2): access invalid blkaddr:4294936705
CPU: 1 PID: 373 Comm: syz.2.17 Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 __f2fs_is_valid_blkaddr+0xda6/0x1460 fs/f2fs/checkpoint.c:215
 f2fs_is_valid_blkaddr_raw+0x23/0x30 fs/f2fs/checkpoint.c:244
 f2fs_truncate_data_blocks_range+0x5f4/0xed0 fs/f2fs/file.c:654
 f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:711
 truncate_dnode fs/f2fs/node.c:962 [inline]
 f2fs_truncate_inode_blocks+0x864/0xfb0 fs/f2fs/node.c:1181
 f2fs_do_truncate_blocks+0x76a/0xc70 fs/f2fs/file.c:800
 f2fs_truncate_blocks+0x10e/0x310 fs/f2fs/file.c:828
 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:878
 f2fs_setattr+0xd07/0x1360 fs/f2fs/file.c:1098
 notify_change+0xcc3/0xf80 fs/attr.c:499
 do_truncate+0x1ac/0x240 fs/open.c:66
 handle_truncate fs/namei.c:3292 [inline]
 do_open fs/namei.c:3637 [inline]
 path_openat+0x28f0/0x2f80 fs/namei.c:3790
 do_filp_open+0x1f1/0x430 fs/namei.c:3817
 do_sys_openat2+0x15e/0x810 fs/open.c:1343
 do_sys_open fs/open.c:1359 [inline]
 __do_sys_open fs/open.c:1367 [inline]
 __se_sys_open fs/open.c:1363 [inline]
 __x64_sys_open+0x11c/0x140 fs/open.c:1363
 x64_sys_call+0x97b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f887739c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd654fd2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8877615fa0 RCX: 00007f887739c799
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f8877432bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000

Crashes (5):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/02/28 17:14 android14-6.1 6bfa51973214 43249bac .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-6-1 KASAN: use-after-free Read in f2fs_truncate_data_blocks_range
2026/02/28 16:54 android14-6.1 6bfa51973214 43249bac .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-6-1 KASAN: use-after-free Read in f2fs_truncate_data_blocks_range
2026/02/08 14:15 android14-6.1 c9e2710a7bd0 4c131dc4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-6-1 KASAN: use-after-free Read in f2fs_truncate_data_blocks_range
2023/05/12 15:48 android14-6.1 af58dc05bbd2 ecca8a24 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 KASAN: use-after-free Read in f2fs_truncate_data_blocks_range
2023/05/23 01:52 android14-6.1 e6c15792a6de 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Read in f2fs_truncate_data_blocks_range
* Struck through repros no longer work on HEAD.