F2FS-fs (loop8): inject invalid blkaddr in f2fs_is_valid_blkaddr of do_write_page+0x277/0xb10 fs/f2fs/segment.c:3956 ------------[ cut here ]------------ kernel BUG at fs/f2fs/segment.c:3957! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 19756 Comm: syz-executor Not tainted 6.16.0-rc4-next-20250704-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:do_write_page+0xa44/0xb10 fs/f2fs/segment.c:3956 Code: 42 34 ad fd 49 89 ed 48 89 e8 48 25 ff 0f 00 00 74 1a e8 4f 2f ad fd e9 9f 00 00 00 e8 45 2f ad fd 90 0f 0b e8 3d 2f ad fd 90 <0f> 0b 4d 89 ee 4c 89 ef be 08 00 00 00 e8 8a ce 11 fe 49 c1 ee 03 RSP: 0018:ffffc90003eaf450 EFLAGS: 00010293 RAX: ffffffff84128143 RBX: ffffc90003eaf5a0 RCX: ffff88802ad1da00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90003eaf5bc R08: ffffc90003eaefe7 R09: 1ffff920007d5dfc R10: dffffc0000000000 R11: fffff520007d5dfd R12: ffff888031ca8000 R13: 1ffff920007d5eb7 R14: dffffc0000000000 R15: ffffc90003eaf5bc FS: 000055555c652500(0000) GS:ffff888125ce7000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe2eb5ea000 CR3: 0000000030eee000 CR4: 00000000003526f0 Call Trace: f2fs_do_write_node_page+0x3b/0x60 fs/f2fs/segment.c:4002 __write_node_folio+0x8c1/0x1550 fs/f2fs/node.c:1746 f2fs_sync_node_pages+0x104d/0x1a00 fs/f2fs/node.c:2092 block_operations fs/f2fs/checkpoint.c:1276 [inline] f2fs_write_checkpoint+0xe6f/0x1df0 fs/f2fs/checkpoint.c:1638 kill_f2fs_super+0x2c3/0x6c0 fs/f2fs/super.c:5081 deactivate_locked_super+0xb9/0x130 fs/super.c:474 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1378 task_work_run+0x1d1/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xec/0x110 kernel/entry/common.c:43 exit_to_user_mode_prepare include/linux/irq-entry-common.h:208 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdd9358fc57 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007fff7c5c53c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007fdd93610925 RCX: 00007fdd9358fc57 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff7c5c5480 RBP: 00007fff7c5c5480 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff7c5c6510 R13: 00007fdd93610925 R14: 00000000001009a3 R15: 00007fff7c5c6550 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:do_write_page+0xa44/0xb10 fs/f2fs/segment.c:3956 Code: 42 34 ad fd 49 89 ed 48 89 e8 48 25 ff 0f 00 00 74 1a e8 4f 2f ad fd e9 9f 00 00 00 e8 45 2f ad fd 90 0f 0b e8 3d 2f ad fd 90 <0f> 0b 4d 89 ee 4c 89 ef be 08 00 00 00 e8 8a ce 11 fe 49 c1 ee 03 RSP: 0018:ffffc90003eaf450 EFLAGS: 00010293 RAX: ffffffff84128143 RBX: ffffc90003eaf5a0 RCX: ffff88802ad1da00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90003eaf5bc R08: ffffc90003eaefe7 R09: 1ffff920007d5dfc R10: dffffc0000000000 R11: fffff520007d5dfd R12: ffff888031ca8000 R13: 1ffff920007d5eb7 R14: dffffc0000000000 R15: ffffc90003eaf5bc FS: 000055555c652500(0000) GS:ffff888125be7000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f357781f000 CR3: 0000000030eee000 CR4: 00000000003526f0