./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1181509499 <...> Warning: Permanently added '10.128.1.187' (ED25519) to the list of known hosts. execve("./syz-executor1181509499", ["./syz-executor1181509499"], 0x7ffc7e365a00 /* 10 vars */) = 0 brk(NULL) = 0x55556ec02000 brk(0x55556ec02d00) = 0x55556ec02d00 arch_prctl(ARCH_SET_FS, 0x55556ec02380) = 0 set_tid_address(0x55556ec02650) = 5831 set_robust_list(0x55556ec02660, 24) = 0 rseq(0x55556ec02ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1181509499", 4096) = 28 getrandom("\x6e\x0d\x92\x16\x19\x23\x63\xba", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556ec02d00 brk(0x55556ec23d00) = 0x55556ec23d00 brk(0x55556ec24000) = 0x55556ec24000 mprotect(0x7feff072e000, 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) = 0x7fefe8200000 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(0x7fefe8200000, 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 [ 74.434219][ T5831] loop0: detected capacity change from 0 to 32768 [ 74.479024][ T5831] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor118 (5831) [ 74.505672][ T5831] BTRFS info (device loop0): first mount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 [ 74.519471][ T5831] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 74.529558][ T5831] BTRFS info (device loop0): using free-space-tree [ 74.633941][ T35] BTRFS warning (device loop0): checksum verify failed on logical 5337088 mirror 1 wanted 0x324c5e2d0cac2dc8f61cbfdfc8cd69d9816061b1498b9e1bff7d10a59610160b found 0xf8bb6bdef03b64ff3b11a2a87ba7a2aeacfdb41cc49a87adad5cc1644d216b29 level 0 [ 74.658480][ T35] BTRFS warning (device loop0): checksum verify failed on logical 5341184 mirror 1 wanted 0xc53d3c5bb04ba5dfc01f4c277f0b81815915cb99da5074f609a3f7f617cf284a found 0xd34891a64d32c06b063fbbf3d26e09cb4d5acf5ade8dc51c4cd532bb53f895d0 level 0 [ 74.683370][ T35] BTRFS warning (device loop0): checksum verify failed on logical 5287936 mirror 1 wanted 0x31987782e3a542b4b1826f4a60605b79838e23bf27075900db4b92202c72b2fd found 0xceda3bc49047826ec4468b88ec74a14d6cd3232f25b2c41331ed48993507590e level 0 [ 74.707514][ T35] BTRFS warning (device loop0): checksum verify failed on logical 5292032 mirror 1 wanted 0xcbbb23d5b53a3b4892a5068ee5011732ffcd94742b434497e3f11d7ca86a6d23 found 0x6ab87e71a537053373402d980abd70276b583e303a68e0dd0a46bb41cfc306c8 level 0 [ 74.734347][ T5831] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN PTI [ 74.746959][ T5831] KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] [ 74.755385][ T5831] CPU: 0 UID: 0 PID: 5831 Comm: syz-executor118 Not tainted 6.12.0-rc7-syzkaller #0 [ 74.764747][ T5831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 74.774807][ T5831] RIP: 0010:btrfs_root_node+0x86/0x3b0 [ 74.780295][ T5831] Code: e0 bb c5 fd 48 83 c4 08 e8 c7 63 14 08 89 c3 31 ff 89 c6 e8 dc 52 ea fd 85 db 74 17 e8 e3 3b d0 fd 84 c0 74 1c e8 8a 4e ea fd <43> 80 3c 3c 00 75 4b eb 51 e8 7c 4e ea fd 43 80 3c 3c 00 75 3d eb [ 74.799917][ T5831] RSP: 0018:ffffc90003df76c0 EFLAGS: 00010293 [ 74.806008][ T5831] RAX: ffffffff83aa8b26 RBX: 0000000000000001 RCX: ffff888024339e00 [ 74.813989][ T5831] RDX: 0000000000000000 RSI: ffffffff8c603640 RDI: ffffffff8c603600 [ 74.821964][ T5831] RBP: ffffc90003df78b0 R08: ffffffff83aa8b14 R09: 1ffffffff2853100 [ 74.829942][ T5831] R10: dffffc0000000000 R11: fffffbfff2853101 R12: 0000000000000003 [ 74.837918][ T5831] R13: dffffc0000000000 R14: 0000000000000018 R15: dffffc0000000000 [ 74.845983][ T5831] FS: 000055556ec02380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 74.854928][ T5831] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.861535][ T5831] CR2: 000055fa03db78a0 CR3: 000000007a8b0000 CR4: 00000000003526f0 [ 74.869510][ T5831] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.877482][ T5831] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.885456][ T5831] Call Trace: [ 74.888738][ T5831] [ 74.891671][ T5831] ? __die_body+0x5f/0xb0 [ 74.896011][ T5831] ? die_addr+0xb0/0xe0 [ 74.900172][ T5831] ? exc_general_protection+0x3dd/0x5d0 [ 74.905748][ T5831] ? asm_exc_general_protection+0x26/0x30 [ 74.911475][ T5831] ? btrfs_root_node+0x74/0x3b0 [ 74.916339][ T5831] ? btrfs_root_node+0x86/0x3b0 [ 74.921202][ T5831] ? btrfs_root_node+0x86/0x3b0 [ 74.926067][ T5831] ? btrfs_root_node+0x40/0x3b0 [ 74.931019][ T5831] btrfs_read_lock_root_node+0x27/0xd0 [ 74.936486][ T5831] btrfs_build_ref_tree+0x112/0x16f0 [ 74.941776][ T5831] ? try_to_wake_up+0x98b/0x14b0 [ 74.946807][ T5831] ? __pfx_btrfs_read_qgroup_config+0x10/0x10 [ 74.952892][ T5831] ? cpus_share_resources+0x60/0x120 [ 74.958179][ T5831] ? __pfx_btrfs_build_ref_tree+0x10/0x10 [ 74.963907][ T5831] ? btrfs_check_active_zone_reservation+0x95/0x4d0 [ 74.970506][ T5831] ? btrfs_free_zone_cache+0x15e/0x190 [ 74.976004][ T5831] open_ctree+0x1fd0/0x2a50 [ 74.980535][ T5831] ? bdi_register_va+0x586/0x760 [ 74.985505][ T5831] ? __pfx_open_ctree+0x10/0x10 [ 74.990381][ T5831] btrfs_get_tree+0x1276/0x1a10 [ 74.995253][ T5831] ? __pfx_btrfs_get_tree+0x10/0x10 [ 75.000467][ T5831] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 75.006296][ T5831] vfs_get_tree+0x90/0x2b0 [ 75.010725][ T5831] fc_mount+0x1b/0xb0 [ 75.014715][ T5831] btrfs_get_tree+0x65b/0x1a10 [ 75.019493][ T5831] ? generic_parse_monolithic+0x387/0x400 [ 75.025573][ T5831] ? __pfx_btrfs_get_tree+0x10/0x10 [ 75.030803][ T5831] ? __pfx_generic_parse_monolithic+0x10/0x10 [ 75.037009][ T5831] ? cap_capable+0x1b4/0x250 [ 75.041610][ T5831] ? safesetid_security_capable+0xb2/0x1d0 [ 75.047427][ T5831] vfs_get_tree+0x90/0x2b0 [ 75.051870][ T5831] do_new_mount+0x2be/0xb40 [ 75.056385][ T5831] ? __pfx_do_new_mount+0x10/0x10 [ 75.061437][ T5831] __se_sys_mount+0x2d6/0x3c0 [ 75.066129][ T5831] ? __pfx___se_sys_mount+0x10/0x10 [ 75.071338][ T5831] ? do_syscall_64+0x100/0x230 [ 75.076122][ T5831] ? __x64_sys_mount+0x20/0xc0 [ 75.080899][ T5831] do_syscall_64+0xf3/0x230 [ 75.085411][ T5831] ? clear_bhb_loop+0x35/0x90 [ 75.090097][ T5831] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.096012][ T5831] RIP: 0033:0x7feff06b7a4a [ 75.100453][ T5831] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 75.120163][ T5831] RSP: 002b:00007ffc4d92d5a8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 75.128679][ T5831] RAX: ffffffffffffffda RBX: 00007ffc4d92d5b0 RCX: 00007feff06b7a4a [ 75.136744][ T5831] RDX: 0000000020000080 RSI: 0000000020000000 RDI: 00007ffc4d92d5b0 [ 75.144725][ T5831] RBP: 0000000000000004 R08: 00007ffc4d92d5f0 R09: 00000000000055c5 [ 75.152709][ T5831] R10: 000000000001c005 R11: 0000000000000282 R12: 00007ffc4d92d5f0 [ 75.160686][ T5831] R13: 0000000000000003 R14: 0000000001000000 R15: 0000000000000001 [ 75.168668][ T5831] [ 75.171690][ T5831] Modules linked in: [ 75.176016][ T5831] ---[ end trace 0000000000000000 ]--- [ 75.181588][ T5831] RIP: 0010:btrfs_root_node+0x86/0x3b0 [ 75.187129][ T5831] Code: e0 bb c5 fd 48 83 c4 08 e8 c7 63 14 08 89 c3 31 ff 89 c6 e8 dc 52 ea fd 85 db 74 17 e8 e3 3b d0 fd 84 c0 74 1c e8 8a 4e ea fd <43> 80 3c 3c 00 75 4b eb 51 e8 7c 4e ea fd 43 80 3c 3c 00 75 3d eb [ 75.206782][ T5831] RSP: 0018:ffffc90003df76c0 EFLAGS: 00010293 [ 75.212897][ T5831] RAX: ffffffff83aa8b26 RBX: 0000000000000001 RCX: ffff888024339e00 [ 75.220870][ T5831] RDX: 0000000000000000 RSI: ffffffff8c603640 RDI: ffffffff8c603600 [ 75.228893][ T5831] RBP: ffffc90003df78b0 R08: ffffffff83aa8b14 R09: 1ffffffff2853100 [ 75.236919][ T5831] R10: dffffc0000000000 R11: fffffbfff2853101 R12: 0000000000000003 [ 75.244930][ T5831] R13: dffffc0000000000 R14: 0000000000000018 R15: dffffc0000000000 [ 75.252944][ T5831] FS: 000055556ec02380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 75.261873][ T5831] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.268493][ T5831] CR2: 000055fa03db78a0 CR3: 000000007a8b0000 CR4: 00000000003526f0 [ 75.276570][ T5831] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.284597][ T5831] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.292643][ T5831] Kernel panic - not syncing: Fatal exception [ 75.299009][ T5831] Kernel Offset: disabled [ 75.303348][ T5831] Rebooting in 86400 seconds..