general protection fault, probably for non-canonical address 0xf2dd7be628a002f1: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0x96ebff3145001788-0x96ebff314500178f] CPU: 0 PID: 15478 Comm: syz.9.4452 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 RIP: 0010:f2fs_release_page+0x414/0x7d0 fs/f2fs/data.c:3624 Code: e8 03 49 bd 00 00 00 00 00 fc ff df 42 80 3c 28 00 74 08 4c 89 e7 e8 fb 15 96 ff 4d 8b 24 24 49 83 c4 04 4c 89 e0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 39 03 00 00 45 8b 24 24 4c 89 ff 4c 89 RSP: 0018:ffffc90000ecea70 EFLAGS: 00010a03 RAX: 12dd7fe628a002f1 RBX: ffffea00046af4c0 RCX: dffffc0000000000 RDX: ffff888113f5a780 RSI: 0000000040000000 RDI: ffff88812bc22070 RBP: ffffc90000eceaa8 R08: ffffea00046af4c7 R09: 1ffffd40008d5e98 R10: dffffc0000000000 R11: fffff940008d5e99 R12: 96ebff314500178f R13: dffffc0000000000 R14: 1ffffd40008d5e99 R15: 0000000000000003 FS: 00007f54b7d746c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6bce92aff8 CR3: 000000011dfa7000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: try_to_release_page+0x18d/0x1e0 mm/filemap.c:3705 shrink_page_list+0x1730/0x4250 mm/vmscan.c:1467 shrink_inactive_list+0x532/0xef0 mm/vmscan.c:2075 shrink_list mm/vmscan.c:2294 [inline] shrink_lruvec+0x1235/0x2860 mm/vmscan.c:5473 shrink_node_memcgs mm/vmscan.c:5660 [inline] shrink_node+0xf0c/0x2690 mm/vmscan.c:5690 shrink_zones mm/vmscan.c:5896 [inline] do_try_to_free_pages+0x603/0x1590 mm/vmscan.c:5954 try_to_free_mem_cgroup_pages+0x261/0x610 mm/vmscan.c:6272 try_charge+0x43e/0x1500 mm/memcontrol.c:2745 __mem_cgroup_charge+0x14c/0x6d0 mm/memcontrol.c:6871 mem_cgroup_charge include/linux/memcontrol.h:458 [inline] shmem_add_to_page_cache+0x574/0xe30 mm/shmem.c:699 shmem_getpage_gfp+0x8eb/0x2120 mm/shmem.c:1952 shmem_getpage mm/shmem.c:161 [inline] shmem_fallocate+0x841/0xc40 mm/shmem.c:2820 vfs_fallocate+0x4b4/0x590 fs/open.c:310 ksys_fallocate fs/open.c:333 [inline] __do_sys_fallocate fs/open.c:341 [inline] __se_sys_fallocate fs/open.c:339 [inline] __x64_sys_fallocate+0xc0/0x110 fs/open.c:339 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f54b9319dd9 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:00007f54b7d74028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007f54b9592fa0 RCX: 00007f54b9319dd9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f54b93afd69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000008800000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f54b9593038 R14: 00007f54b9592fa0 R15: 00007ffeb31ccc28 Modules linked in: ---[ end trace a8c4d96d8ac01aee ]--- RIP: 0010:f2fs_release_page+0x414/0x7d0 fs/f2fs/data.c:3624 Code: e8 03 49 bd 00 00 00 00 00 fc ff df 42 80 3c 28 00 74 08 4c 89 e7 e8 fb 15 96 ff 4d 8b 24 24 49 83 c4 04 4c 89 e0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 39 03 00 00 45 8b 24 24 4c 89 ff 4c 89 RSP: 0018:ffffc90000ecea70 EFLAGS: 00010a03 RAX: 12dd7fe628a002f1 RBX: ffffea00046af4c0 RCX: dffffc0000000000 RDX: ffff888113f5a780 RSI: 0000000040000000 RDI: ffff88812bc22070 RBP: ffffc90000eceaa8 R08: ffffea00046af4c7 R09: 1ffffd40008d5e98 R10: dffffc0000000000 R11: fffff940008d5e99 R12: 96ebff314500178f R13: dffffc0000000000 R14: 1ffffd40008d5e99 R15: 0000000000000003 FS: 00007f54b7d746c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6bd013f2f8 CR3: 000000011dfa7000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e8 03 49 bd 00 call 0xbd4908 5: 00 00 add %al,(%rax) 7: 00 00 add %al,(%rax) 9: fc cld a: ff lcall (bad) b: df 42 80 filds -0x80(%rdx) e: 3c 28 cmp $0x28,%al 10: 00 74 08 4c add %dh,0x4c(%rax,%rcx,1) 14: 89 e7 mov %esp,%edi 16: e8 fb 15 96 ff call 0xff961616 1b: 4d 8b 24 24 mov (%r12),%r12 1f: 49 83 c4 04 add $0x4,%r12 23: 4c 89 e0 mov %r12,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 39 03 00 00 jne 0x370 37: 45 8b 24 24 mov (%r12),%r12d 3b: 4c 89 ff mov %r15,%rdi 3e: 4c rex.WR 3f: 89 .byte 0x89