./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2034805954 <...> Warning: Permanently added '10.128.0.147' (ECDSA) to the list of known hosts. execve("./syz-executor2034805954", ["./syz-executor2034805954"], 0x7ffca0b21800 /* 10 vars */) = 0 brk(NULL) = 0x555555e1a000 brk(0x555555e1ac40) = 0x555555e1ac40 arch_prctl(ARCH_SET_FS, 0x555555e1a300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2034805954", 4096) = 28 brk(0x555555e3bc40) = 0x555555e3bc40 brk(0x555555e3c000) = 0x555555e3c000 mprotect(0x7f2355609000, 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 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f234d147000 write(3, "\x58\x46\x53\x42\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xbf\xdc\x47\xfc\x10\xd8\x4e\xed\xa5\x62\x11\xa8\x31\xb3\xf7\x91\x00\x00\x00\x00\x00\x00\x00\x20\x00\x00\x00\x00\x00\x00\x24\x40\x00\x00\x00\x00\x00\x00\x24\x41\x00\x00\x00\x00\x00\x00\x24\x42\x00\x00\x00\x02\x00\x00\x20\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x12\x00"..., 16777216) = 16777216 munmap(0x7f234d147000, 16777216) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 mkdir("./file0", 0777) = 0 syzkaller login: [ 60.970949][ T3630] loop0: detected capacity change from 0 to 32768 [ 60.988060][ T3630] XFS (loop0): Mounting V5 Filesystem [ 61.016173][ T3630] XFS (loop0): Ending clean mount [ 61.024231][ T3630] XFS (loop0): Quotacheck needed: Please wait. mount("/dev/loop0", "./file0", "xfs", MS_NODIRATIME|MS_RELATIME, "pqnoenforce,,nouuid") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 chdir("./file0") = 0 ioctl(4, LOOP_CLR_FD) = 0 close(4) = 0 openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [ 61.062098][ T3630] XFS (loop0): Quotacheck: Done. [ 61.080751][ T3630] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN [ 61.093463][ T3630] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 61.102844][ T3630] CPU: 0 PID: 3630 Comm: syz-executor203 Not tainted 6.1.0-syzkaller-03295-g02bf43c7b7f7 #0 [ 61.112930][ T3630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 61.122989][ T3630] RIP: 0010:__xfs_free_extent+0x1f5/0x600 [ 61.128724][ T3630] Code: 00 74 05 e8 bd 96 cc fe 4c 89 ac 24 88 00 00 00 4c 89 7c 24 08 49 8d 5f 08 48 89 d8 48 c1 e8 03 49 bf 00 00 00 00 00 fc ff df <42> 8a 04 38 84 c0 0f 85 02 03 00 00 44 8b 23 4c 8d b4 24 80 00 00 [ 61.148733][ T3630] RSP: 0018:ffffc90003d9f580 EFLAGS: 00010202 [ 61.154905][ T3630] RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000000000000000 [ 61.162977][ T3630] RDX: 0000000000000080 RSI: 0000000000000000 RDI: ffffc90003d9f608 [ 61.171025][ T3630] RBP: ffffc90003d9f730 R08: dffffc0000000000 R09: ffffc90003d9f610 [ 61.178993][ T3630] R10: fffff520007b3ed2 R11: 1ffff920007b3ec2 R12: 1ffff1100e8a82bf [ 61.186963][ T3630] R13: ffff888022c3e000 R14: dffffc0000000000 R15: dffffc0000000000 [ 61.195444][ T3630] FS: 0000555555e1a300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 61.204460][ T3630] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.211029][ T3630] CR2: 00007f9470a976a8 CR3: 000000007dad7000 CR4: 00000000003506f0 [ 61.219618][ T3630] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.227581][ T3630] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.235815][ T3630] Call Trace: [ 61.239101][ T3630] [ 61.242196][ T3630] ? xfs_free_extent_fix_freelist+0x2c0/0x2c0 [ 61.248254][ T3630] ? kmem_cache_free+0x94/0x1d0 [ 61.253095][ T3630] ? xfs_rmap_free+0xd1/0xf0 [ 61.257844][ T3630] xfs_ag_extend_space+0x365/0x5a0 [ 61.262942][ T3630] ? xfs_ag_shrink_space+0xd10/0xd10 [ 61.268212][ T3630] xfs_growfs_data+0x959/0x10e0 [ 61.273138][ T3630] ? xfs_getfsmap_rtdev_rtbitmap_helper+0x310/0x310 [ 61.279718][ T3630] ? rcu_read_lock_any_held+0xb1/0x130 [ 61.285167][ T3630] xfs_file_ioctl+0xf7f/0x1320 [ 61.289957][ T3630] ? xfs_ioc_swapext+0x570/0x570 [ 61.294914][ T3630] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 61.301026][ T3630] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 61.307115][ T3630] ? rcu_lock_release+0x5/0x20 [ 61.312155][ T3630] ? do_vfs_ioctl+0x1a1c/0x2980 [ 61.317091][ T3630] ? __x64_compat_sys_ioctl+0x80/0x80 [ 61.322813][ T3630] ? __lock_acquire+0x1f60/0x1f60 [ 61.327922][ T3630] ? slab_free_freelist_hook+0x12e/0x1a0 [ 61.333635][ T3630] ? tomoyo_path_number_perm+0x5af/0x780 [ 61.339529][ T3630] ? __kmem_cache_free+0x71/0x110 [ 61.344907][ T3630] ? tomoyo_path_number_perm+0x629/0x780 [ 61.350804][ T3630] ? tomoyo_check_path_acl+0x1c0/0x1c0 [ 61.356357][ T3630] ? _raw_spin_lock_irqsave+0x100/0x100 [ 61.362004][ T3630] ? do_notify_parent+0xe00/0xe00 [ 61.367021][ T3630] ? bpf_lsm_file_ioctl+0x5/0x10 [ 61.371949][ T3630] ? security_file_ioctl+0x9d/0xb0 [ 61.377092][ T3630] ? xfs_ioc_swapext+0x570/0x570 [ 61.382458][ T3630] __se_sys_ioctl+0xfb/0x170 [ 61.387051][ T3630] do_syscall_64+0x3d/0xb0 [ 61.391946][ T3630] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.397871][ T3630] RIP: 0033:0x7f23555938c9 [ 61.402711][ T3630] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48 [ 61.422340][ T3630] RSP: 002b:00007ffc24b23568 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 61.430856][ T3630] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f23555938c9 [ 61.438816][ T3630] RDX: 0000000020000200 RSI: 000000004010586e RDI: 0000000000000004 [ 61.446799][ T3630] RBP: 00007f2355553160 R08: 0000000000000000 R09: 0000000000000000 [ 61.454755][ T3630] R10: 00000000000095cb R11: 0000000000000246 R12: 00007f23555531f0 [ 61.462823][ T3630] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 61.470784][ T3630] [ 61.473959][ T3630] Modules linked in: [ 61.477971][ T3630] ---[ end trace 0000000000000000 ]--- [ 61.483608][ T3630] RIP: 0010:__xfs_free_extent+0x1f5/0x600 [ 61.489471][ T3630] Code: 00 74 05 e8 bd 96 cc fe 4c 89 ac 24 88 00 00 00 4c 89 7c 24 08 49 8d 5f 08 48 89 d8 48 c1 e8 03 49 bf 00 00 00 00 00 fc ff df <42> 8a 04 38 84 c0 0f 85 02 03 00 00 44 8b 23 4c 8d b4 24 80 00 00 [ 61.509213][ T3630] RSP: 0018:ffffc90003d9f580 EFLAGS: 00010202 [ 61.515545][ T3630] RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000000000000000 [ 61.523929][ T3630] RDX: 0000000000000080 RSI: 0000000000000000 RDI: ffffc90003d9f608 [ 61.532020][ T3630] RBP: ffffc90003d9f730 R08: dffffc0000000000 R09: ffffc90003d9f610 [ 61.540190][ T3630] R10: fffff520007b3ed2 R11: 1ffff920007b3ec2 R12: 1ffff1100e8a82bf [ 61.548186][ T3630] R13: ffff888022c3e000 R14: dffffc0000000000 R15: dffffc0000000000 [ 61.556379][ T3630] FS: 0000555555e1a300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 61.565398][ T3630] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.572029][ T3630] CR2: 00007f9470a976a8 CR3: 000000007dad7000 CR4: 00000000003506f0 [ 61.580136][ T3630] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.588129][ T3630] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.596195][ T3630] Kernel panic - not syncing: Fatal exception [ 61.602385][ T3630] Kernel Offset: disabled [ 61.606788][ T3630] Rebooting in 86400 seconds..