ci-upstream-linux-next-kasan-gce-root/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-linux-next-kasan-gce-root/syz-executor2476188876 <...> Warning: Permanently added '10.128.0.107' (ED25519) to the list of known hosts. execve("ci-upstream-linux-next-kasan-gce-root/syz-executor2476188876", ["ci-upstream-linux-next-kasan-gce-root/syz-executor2476188876"], 0x7fff42dfb0b0 /* 10 vars */) = 0 brk(NULL) = 0x555561a2d000 brk(0x555561a2dd80) = 0x555561a2dd80 arch_prctl(ARCH_SET_FS, 0x555561a2d400) = 0 set_tid_address(0x555561a2d6d0) = 5644 set_robust_list(0x555561a2d6e0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci-upstream-linux-next-kasan-gce-root/syz-executor2476188876", 4096) = 66 getrandom("\x86\x07\xdb\x1b\xcb\xff\x03\x1b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555561a2dd80 brk(0x555561a4ed80) = 0x555561a4ed80 brk(0x555561a4f000) = 0x555561a4f000 mprotect(0x7f74810d1000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5645 attached , child_tidptr=0x555561a2d6d0) = 5645 [pid 5644] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5645] set_robust_list(0x555561a2d6e0, 24) = 0 [pid 5645] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5645] setpgid(0, 0) = 0 [pid 5645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5645] write(3, "1000", 4) = 4 [pid 5645] close(3) = 0 [pid 5645] write(1, "executing program\n", 18) = 18 executing program [pid 5645] memfd_create("syzkaller", 0) = 3 [pid 5645] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7478c00000 [pid 5645] write(3, "\x68\x73\x71\x73\x07\x00\x00\x00\xfd\xf1\x7c\x63\x00\x40\x00\x00\x00\x00\x00\x00\x03\x00\x0e\x00\xdb\x01\x01\x00\x04\x00\x00\x00\x1f\x01\x00\x00\x00\x00\x00\x00\x46\x07\x00\x00\x00\x00\x00\x00\xea\x06\x00\x00\x00\x00\x00\x00\x2e\x07\x00\x00\x00\x00\x00\x00\xe8\x04\x00\x00\x00\x00\x00\x00\x29\x06\x00\x00\x00\x00\x00\x00\xa2\x06\x00\x00\x00\x00\x00\x00\xdc\x06\x00\x00\x00\x00\x00\x00\x73\x79\x7a\x6b"..., 4096) = 4096 [pid 5645] munmap(0x7f7478c00000, 138412032) = 0 [pid 5645] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5645] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5645] close(3) = 0 [pid 5645] close(4) = 0 [pid 5645] mkdir("./file0", 0777) = 0 [ 76.242310][ T5645] loop0: detected capacity change from 0 to 8 [ 76.274248][ T5645] SQUASHFS error: Unable to read inode 0x11f [ 76.275684][ T5645] Filesystem squashfs get_tree() didn't set fc->root, returned 40 [ 76.275932][ T5645] ------------[ cut here ]------------ [ 76.275940][ T5645] kernel BUG at fs/super.c:2174! [ 76.275976][ T5645] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 76.306440][ T5645] CPU: 0 UID: 0 PID: 5645 Comm: syz-executor247 Not tainted syzkaller #0 PREEMPT(full) [ 76.316130][ T5645] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 [ 76.326184][ T5645] RIP: 0010:vfs_get_tree+0x29c/0x2a0 [ 76.331496][ T5645] Code: 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 07 2b eb ff 48 8b 33 48 c7 c7 00 6b 40 8c 44 89 f2 e8 85 81 c9 fe 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f [ 76.351089][ T5645] RSP: 0018:ffffc90003a67c88 EFLAGS: 00010246 [ 76.357147][ T5645] RAX: 000000000000003f RBX: ffffffff903c9a60 RCX: f236a142641ab000 [ 76.365097][ T5645] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 76.373047][ T5645] RBP: ffffc90003a67df0 R08: ffffffff9014d12b R09: 1ffffffff2029a25 [ 76.381002][ T5645] R10: dffffc0000000000 R11: fffffbfff2029a26 R12: 1ffff11003b5f455 [ 76.388965][ T5645] R13: dffffc0000000000 R14: 0000000000000028 R15: 0000000000000000 [ 76.396920][ T5645] FS: 0000555561a2d400(0000) GS:ffff8881233cd000(0000) knlGS:0000000000000000 [ 76.405831][ T5645] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.412396][ T5645] CR2: 00007ffd3ab27000 CR3: 000000007b7a8000 CR4: 00000000003526f0 [ 76.420367][ T5645] Call Trace: [ 76.423634][ T5645] [ 76.426562][ T5645] do_new_mount+0x325/0xb00 [ 76.431056][ T5645] ? __pfx_do_new_mount+0x10/0x10 [ 76.436065][ T5645] ? security_capable+0x7e/0x2c0 [ 76.440996][ T5645] ? ns_capable+0x84/0xe0 [ 76.445319][ T5645] ? path_mount+0x643/0x1070 [ 76.449901][ T5645] ? user_path_at+0xd4/0x160 [ 76.454478][ T5645] __se_sys_mount+0x31d/0x420 [ 76.459150][ T5645] ? __pfx___se_sys_mount+0x10/0x10 [ 76.464333][ T5645] ? __x64_sys_mount+0x20/0xc0 [ 76.469080][ T5645] do_syscall_64+0x171/0x540 [ 76.473661][ T5645] ? trace_irq_disable+0x3b/0x140 [ 76.478667][ T5645] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.484723][ T5645] ? clear_bhb_loop+0x70/0xc0 [ 76.489382][ T5645] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.495260][ T5645] RIP: 0033:0x00007f7481046aca [ 76.500028][ T5645] Code: 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 c4 ff 08 00 00 00 00 00 eb 96 e8 51 05 00 00 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 76.519620][ T5645] RSP: 002b:00007ffd3ab26658 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 [ 76.528019][ T5645] RAX: ffffffffffffffda RBX: 00007ffd3ab26680 RCX: 00007f7481046aca [ 76.535976][ T5645] RDX: 00002000000001c0 RSI: 0000200000000200 RDI: 00007ffd3ab26680 [ 76.543935][ T5645] RBP: 00002000000001c0 R08: 00007ffd3ab266c0 R09: 0000000000000000 [ 76.551888][ T5645] R10: 0000000000000000 R11: 0000000000000206 R12: 0000200000000200 [ 76.559840][ T5645] R13: 00007ffd3ab266c0 R14: 0000000000000003 R15: 0000000000000000 [ 76.567807][ T5645] [ 76.570809][ T5645] Modules linked in: [ 76.574798][ T5645] ---[ end trace 0000000000000000 ]--- [ 76.580424][ T5645] RIP: 0010:vfs_get_tree+0x29c/0x2a0 [ 76.580453][ T5645] Code: 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 07 2b eb ff 48 8b 33 48 c7 c7 00 6b 40 8c 44 89 f2 e8 85 81 c9 fe 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f [ 76.580469][ T5645] RSP: 0018:ffffc90003a67c88 EFLAGS: 00010246 [ 76.580484][ T5645] RAX: 000000000000003f RBX: ffffffff903c9a60 RCX: f236a142641ab000 [ 76.580497][ T5645] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 76.580507][ T5645] RBP: ffffc90003a67df0 R08: ffffffff9014d12b R09: 1ffffffff2029a25 [ 76.580519][ T5645] R10: dffffc0000000000 R11: fffffbfff2029a26 R12: 1ffff11003b5f455 [ 76.580540][ T5645] R13: dffffc0000000000 R14: 0000000000000028 R15: 0000000000000000 [ 76.580550][ T5645] FS: 0000555561a2d400(0000) GS:ffff8881233cd000(0000) knlGS:0000000000000000 [ 76.580564][ T5645] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.580575][ T5645] CR2: 00007ffd3ab27000 CR3: 000000007b7a8000 CR4: 00000000003526f0 [ 76.580592][ T5645] Kernel panic - not syncing: Fatal exception [ 76.680928][ T5645] Kernel Offset: disabled [ 76.685240][ T5645] Rebooting in 86400 seconds..