new_handle fs/jbd2/transaction.c:457 [inline]
 jbd2__journal_start+0x145/0x5b0 fs/jbd2/transaction.c:484
 __ext4_journal_start_sb+0x203/0x570 fs/ext4/ext4_jbd2.c:114
 __ext4_journal_start fs/ext4/ext4_jbd2.h:242 [inline]
 ext4_dirty_inode+0x93/0x110 fs/ext4/inode.c:6499
 __mark_inode_dirty+0x3a4/0x1340 fs/fs-writeback.c:2609
 generic_update_time fs/inode.c:2189 [inline]
 file_update_time_flags+0x3ee/0x4a0 fs/inode.c:2419
 ext4_page_mkwrite+0x219/0x11a0 fs/ext4/inode.c:6668
 do_page_mkwrite+0x14d/0x310 mm/memory.c:3531
 do_shared_fault mm/memory.c:5834 [inline]
 do_fault mm/memory.c:5896 [inline]
 do_pte_missing+0x67b/0x37a0 mm/memory.c:4404
 handle_pte_fault mm/memory.c:6276 [inline]
 __handle_mm_fault mm/memory.c:6414 [inline]
 handle_mm_fault+0x1b8c/0x32a0 mm/memory.c:6583
 do_user_addr_fault+0xa73/0x1360 arch/x86/mm/fault.c:1334
------------[ cut here ]------------
kernel BUG at mm/filemap.c:859!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 10890 Comm: syz.2.1041 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:__filemap_add_folio+0x11bc/0x1300 mm/filemap.c:858
Code: aa c5 ff 4c 89 e7 48 c7 c6 20 aa d7 8b e8 9c 63 29 ff 90 0f 0b e8 d4 aa c5 ff 4c 89 e7 48 c7 c6 c0 9e d7 8b e8 85 63 29 ff 90 <0f> 0b e8 bd aa c5 ff 4c 89 e7 48 c7 c6 20 aa d7 8b e8 6e 63 29 ff
RSP: 0018:ffffc9000389f280 EFLAGS: 00010246
RAX: 4096cb6583026d00 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8dedcffb RDI: 00000000ffffffff
RBP: ffffc9000389f400 R08: ffffffff90105477 R09: 1ffffffff2020a8e
R10: dffffc0000000000 R11: fffffbfff2020a8f R12: ffffea0000d24b40
R13: dffffc0000000000 R14: ffffea0000d24b48 R15: 0000000000000004
FS:  00007fc8e2ca56c0(0000) GS:ffff8881255bc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc8e1de96c0 CR3: 0000000061267000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 filemap_add_folio+0x264/0x530 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:453 [inline]
 page_cache_ra_order+0x6a8/0xe50 mm/readahead.c:512
 filemap_get_pages+0x4c5/0x1ec0 mm/filemap.c:2690
 filemap_splice_read+0x5cd/0xd10 mm/filemap.c:3079
 do_splice_read fs/splice.c:982 [inline]
 splice_direct_to_actor+0x478/0xc70 fs/splice.c:1086
 do_splice_direct_actor fs/splice.c:1204 [inline]
 do_splice_direct+0x195/0x290 fs/splice.c:1230
 do_sendfile+0x535/0x7d0 fs/read_write.c:1372
 __do_sys_sendfile64 fs/read_write.c:1433 [inline]
 __se_sys_sendfile64+0x144/0x1a0 fs/read_write.c:1419
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc8e1d9bf79
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:00007fc8e2ca5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fc8e2015fa0 RCX: 00007fc8e1d9bf79
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007fc8e1e327e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc8e2016038 R14: 00007fc8e2015fa0 R15: 00007ffec5a46b28
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x11bc/0x1300 mm/filemap.c:858
Code: aa c5 ff 4c 89 e7 48 c7 c6 20 aa d7 8b e8 9c 63 29 ff 90 0f 0b e8 d4 aa c5 ff 4c 89 e7 48 c7 c6 c0 9e d7 8b e8 85 63 29 ff 90 <0f> 0b e8 bd aa c5 ff 4c 89 e7 48 c7 c6 20 aa d7 8b e8 6e 63 29 ff
RSP: 0018:ffffc9000389f280 EFLAGS: 00010246
RAX: 4096cb6583026d00 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8dedcffb RDI: 00000000ffffffff
RBP: ffffc9000389f400 R08: ffffffff90105477 R09: 1ffffffff2020a8e
R10: dffffc0000000000 R11: fffffbfff2020a8f R12: ffffea0000d24b40
R13: dffffc0000000000 R14: ffffea0000d24b48 R15: 0000000000000004
FS:  00007fc8e2ca56c0(0000) GS:ffff8881255bc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f67b23db000 CR3: 0000000061267000 CR4: 0000000000350ef0