./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor775318373 <...> Warning: Permanently added '10.128.0.213' (ED25519) to the list of known hosts. execve("./syz-executor775318373", ["./syz-executor775318373"], 0x7ffd70acce00 /* 10 vars */) = 0 brk(NULL) = 0x55557aaa6000 brk(0x55557aaa6d00) = 0x55557aaa6d00 arch_prctl(ARCH_SET_FS, 0x55557aaa6380) = 0 set_tid_address(0x55557aaa6650) = 5827 set_robust_list(0x55557aaa6660, 24) = 0 rseq(0x55557aaa6ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor775318373", 4096) = 27 getrandom("\xa6\x0c\x6b\x8c\x5c\x1b\xf3\x1d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557aaa6d00 brk(0x55557aac7d00) = 0x55557aac7d00 brk(0x55557aac8000) = 0x55557aac8000 mprotect(0x7f3479088000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 executing program write(1, "executing program\n", 18) = 18 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3470a00000 write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 munmap(0x7f3470a00000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file1", 0777) = 0 syzkaller login: [ 57.308828][ T5827] loop0: detected capacity change from 0 to 32768 [ 57.347342][ T5827] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor775 (5827) [ 57.393647][ T5827] BTRFS info (device loop0): first mount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 [ 57.404084][ T5827] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 57.414512][ T5827] BTRFS info (device loop0): using free-space-tree [ 57.505056][ T1154] BTRFS warning (device loop0): checksum verify failed on logical 5337088 mirror 1 wanted 0x324c5e2d0cac2dc8f61cbfdfc8cd69d9816061b1498b9e1bff7d10a59610160b found 0xf8bb6bdef03b64ff3b11a2a87ba7a2aeacfdb41cc49a87adad5cc1644d216b29 level 0 [ 57.529220][ T1154] BTRFS warning (device loop0): checksum verify failed on logical 5341184 mirror 1 wanted 0xc53d3c5bb04ba5dfc01f4c277f0b81815915cb99da5074f609a3f7f617cf284a found 0xd34891a64d32c06b063fbbf3d26e09cb4d5acf5ade8dc51c4cd532bb53f895d0 level 0 mount("/dev/loop0", "./file1", "btrfs", MS_RDONLY|MS_NODEV|MS_REC|MS_SILENT|MS_POSIXACL, "skip_balance,autodefrag,noacl,treelog,rescue=ibadroots,rescue=ibadroots,nodiscard,compress-force,acl"...) = 0 openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 chdir("./file1") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_CLR_FD) = 0 close(4) = 0 openat(AT_FDCWD, ".", O_RDONLY) = 4 [ 57.553645][ T1154] BTRFS warning (device loop0): checksum verify failed on logical 5287936 mirror 1 wanted 0x31987782e3a542b4b1826f4a60605b79838e23bf27075900db4b92202c72b2fd found 0xceda3bc49047826ec4468b88ec74a14d6cd3232f25b2c41331ed48993507590e level 0 [ 57.577091][ T1154] BTRFS warning (device loop0): checksum verify failed on logical 5292032 mirror 1 wanted 0xcbbb23d5b53a3b4892a5068ee5011732ffcd94742b434497e3f11d7ca86a6d23 found 0x6ab87e71a537053373402d980abd70276b583e303a68e0dd0a46bb41cfc306c8 level 0 [ 57.624297][ T5827] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000041: 0000 [#1] PREEMPT SMP KASAN PTI [ 57.636890][ T5827] KASAN: null-ptr-deref in range [0x0000000000000208-0x000000000000020f] [ 57.645303][ T5827] CPU: 0 UID: 0 PID: 5827 Comm: syz-executor775 Not tainted 6.12.0-rc5-syzkaller-00308-g3e5e6c9900c3 #0 [ 57.656391][ T5827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 57.666433][ T5827] RIP: 0010:btrfs_search_slot+0xc5/0x30d0 [ 57.672161][ T5827] Code: 08 43 c7 44 2c 10 04 f2 04 f3 e8 76 f9 e9 fd 48 89 5c 24 38 48 81 c3 08 02 00 00 48 89 d8 48 c1 e8 03 48 89 84 24 d0 00 00 00 <42> 80 3c 28 00 74 08 48 89 df e8 5c 94 50 fe 48 8b 03 48 89 84 24 [ 57.691762][ T5827] RSP: 0018:ffffc90002d1f9e0 EFLAGS: 00010206 [ 57.697845][ T5827] RAX: 0000000000000041 RBX: 0000000000000208 RCX: ffff888034e79e00 [ 57.705918][ T5827] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 57.713899][ T5827] RBP: ffffc90002d1fbb0 R08: 0000000000000000 R09: 0000000000000000 [ 57.721878][ T5827] R10: dffffc0000000000 R11: ffffed1006a8300e R12: 1ffff920005a3f58 [ 57.729861][ T5827] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888035d26580 [ 57.737844][ T5827] FS: 000055557aaa6380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 57.746781][ T5827] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.753375][ T5827] CR2: 00007ffdd2837928 CR3: 0000000011a9c000 CR4: 00000000003526f0 [ 57.761358][ T5827] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.769331][ T5827] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.777288][ T5827] Call Trace: [ 57.780548][ T5827] [ 57.783483][ T5827] ? __die_body+0x5f/0xb0 [ 57.787795][ T5827] ? die_addr+0xb0/0xe0 [ 57.791929][ T5827] ? exc_general_protection+0x3dd/0x5d0 [ 57.797472][ T5827] ? asm_exc_general_protection+0x26/0x30 [ 57.803176][ T5827] ? btrfs_search_slot+0xc5/0x30d0 [ 57.808271][ T5827] ? __pfx_lock_release+0x10/0x10 [ 57.813286][ T5827] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 57.819599][ T5827] ? __pfx_btrfs_search_slot+0x10/0x10 [ 57.825036][ T5827] ? btrfs_extent_root+0x2a1/0x3b0 [ 57.830128][ T5827] ? __pfx_btrfs_extent_root+0x10/0x10 [ 57.835574][ T5827] extent_from_logical+0x1c8/0x880 [ 57.840671][ T5827] ? __kasan_slab_alloc+0x66/0x80 [ 57.845677][ T5827] ? kmem_cache_alloc_noprof+0x135/0x2a0 [ 57.851289][ T5827] ? btrfs_ioctl_logical_to_ino+0xf3/0x2a0 [ 57.857079][ T5827] ? __pfx_extent_from_logical+0x10/0x10 [ 57.862691][ T5827] iterate_inodes_from_logical+0x13b/0x330 [ 57.868476][ T5827] ? __pfx_iterate_inodes_from_logical+0x10/0x10 [ 57.874791][ T5827] ? btrfs_ioctl_logical_to_ino+0xf3/0x2a0 [ 57.880580][ T5827] ? rcu_is_watching+0x15/0xb0 [ 57.885326][ T5827] ? trace_kmem_cache_alloc+0x1f/0xc0 [ 57.890675][ T5827] ? kmem_cache_alloc_noprof+0x185/0x2a0 [ 57.896304][ T5827] btrfs_ioctl_logical_to_ino+0x133/0x2a0 [ 57.902011][ T5827] ? __pfx_btrfs_ioctl+0x10/0x10 [ 57.906932][ T5827] __se_sys_ioctl+0xf9/0x170 [ 57.911503][ T5827] do_syscall_64+0xf3/0x230 [ 57.916012][ T5827] ? clear_bhb_loop+0x35/0x90 [ 57.920674][ T5827] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 57.926548][ T5827] RIP: 0033:0x7f3479010839 [ 57.930959][ T5827] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 [ 57.950550][ T5827] RSP: 002b:00007fffdd32a398 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 57.958949][ T5827] RAX: ffffffffffffffda RBX: 00007fffdd32a568 RCX: 00007f3479010839 [ 57.966912][ T5827] RDX: 0000000020000080 RSI: 00000000c0389424 RDI: 0000000000000004 [ 57.974872][ T5827] RBP: 00007f3479088610 R08: 0000000000000000 R09: 00007fffdd32a568 [ 57.982847][ T5827] R10: 000000000000002e R11: 0000000000000246 R12: 0000000000000001 [ 57.990806][ T5827] R13: 00007fffdd32a558 R14: 0000000000000001 R15: 0000000000000001 [ 57.998768][ T5827] [ 58.001768][ T5827] Modules linked in: [ 58.005897][ T5827] ---[ end trace 0000000000000000 ]--- [ 58.012939][ T5827] RIP: 0010:btrfs_search_slot+0xc5/0x30d0 [ 58.018725][ T5827] Code: 08 43 c7 44 2c 10 04 f2 04 f3 e8 76 f9 e9 fd 48 89 5c 24 38 48 81 c3 08 02 00 00 48 89 d8 48 c1 e8 03 48 89 84 24 d0 00 00 00 <42> 80 3c 28 00 74 08 48 89 df e8 5c 94 50 fe 48 8b 03 48 89 84 24 [ 58.038743][ T5827] RSP: 0018:ffffc90002d1f9e0 EFLAGS: 00010206 [ 58.044842][ T5827] RAX: 0000000000000041 RBX: 0000000000000208 RCX: ffff888034e79e00 [ 58.052812][ T5827] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 58.060802][ T5827] RBP: ffffc90002d1fbb0 R08: 0000000000000000 R09: 0000000000000000 [ 58.068788][ T5827] R10: dffffc0000000000 R11: ffffed1006a8300e R12: 1ffff920005a3f58 [ 58.076781][ T5827] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888035d26580 [ 58.084781][ T5827] FS: 000055557aaa6380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 58.093745][ T5827] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.100317][ T5827] CR2: 000055c62659c068 CR3: 0000000011a9c000 CR4: 00000000003526f0 [ 58.108340][ T5827] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.116360][ T5827] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.124412][ T5827] Kernel panic - not syncing: Fatal exception [ 58.130710][ T5827] Kernel Offset: disabled [ 58.135020][ T5827] Rebooting in 86400 seconds..