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-executor1349086928 <...> Warning: Permanently added '10.128.1.8' (ED25519) to the list of known hosts. execve("ci-upstream-linux-next-kasan-gce-root/syz-executor1349086928", ["ci-upstream-linux-next-kasan-gce-root/syz-executor1349086928"], 0x7ffc85bd26c0 /* 10 vars */) = 0 brk(NULL) = 0x555564c07000 brk(0x555564c07d80) = 0x555564c07d80 arch_prctl(ARCH_SET_FS, 0x555564c07400) = 0 set_tid_address(0x555564c076d0) = 5643 set_robust_list(0x555564c076e0, 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-executor1349086928", 4096) = 66 getrandom("\xc5\xc2\x97\x20\x2d\x40\x8a\x8d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555564c07d80 brk(0x555564c28d80) = 0x555564c28d80 brk(0x555564c29000) = 0x555564c29000 mprotect(0x7fdbf386f000, 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 5644 attached [pid 5644] set_robust_list(0x555564c076e0, 24 [pid 5643] <... clone resumed>, child_tidptr=0x555564c076d0) = 5644 [pid 5644] <... set_robust_list resumed>) = 0 [pid 5643] rt_sigprocmask(SIG_SETMASK, [] [pid 5644] rt_sigprocmask(SIG_SETMASK, [] [pid 5643] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5644] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5644] setpgid(0, 0) = 0 [pid 5644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5644] write(3, "1000", 4) = 4 [pid 5644] close(3) = 0 [pid 5644] write(1, "executing program\n", 18) = 18 executing program [pid 5644] mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0xb635773f04ebbee0, MAP_SHARED|MAP_FIXED|MAP_ANONYMOUS|MAP_POPULATE, -1, 0) = 0x200000000000 [pid 5644] memfd_create("syzkaller", 0) = 3 [pid 5644] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdbeb200000 [pid 5644] 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\xd1\x01\x01\x00\x04\x00\x00\x00\x1f\x01\x00\x00\x00\x00\x00\x00\xed\x02\x00\x00\x00\x00\x00\x00\x91\x02\x00\x00\x00\x00\x00\x00\xd5\x02\x00\x00\x00\x00\x00\x00\x8f\x00\x00\x00\x00\x00\x00\x00\xd0\x01\x00\x00\x00\x00\x00\x00\x49\x02\x00\x00\x00\x00\x00\x00\x83\x02\x00\x00\x00\x00\x00\x00\x1a\x73\x79\x7a"..., 4096) = 4096 [pid 5644] munmap(0x7fdbeb200000, 138412032) = 0 [pid 5644] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5644] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5644] close(3) = 0 [pid 5644] close(4) = 0 [pid 5644] mkdir("./file1", 0777) = 0 [pid 5644] mount("/dev/loop0", "./file1", "squashfs", MS_LAZYTIME, "") = 0 [pid 5644] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5644] chdir("./file1") = 0 [pid 5644] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5644] ioctl(4, LOOP_CLR_FD) = 0 [pid 5644] close(4) = 0 [ 74.443607][ T5644] loop0: detected capacity change from 0 to 8 [ 74.497644][ T5644] SQUASHFS error: Unable to read directory block [0:26] [ 74.497848][ T5644] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI [ 74.516672][ T5644] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 74.525089][ T5644] CPU: 1 UID: 0 PID: 5644 Comm: syz-executor134 Not tainted syzkaller #0 PREEMPT(full) [ 74.534785][ T5644] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 [ 74.544821][ T5644] RIP: 0010:step_into_slowpath+0x112/0x810 [ 74.550645][ T5644] Code: 24 1f 00 49 bf 00 00 00 00 00 fc ff df 43 0f b6 04 3c 84 c0 0f 85 75 05 00 00 45 8b 75 00 4c 8b 6c 24 48 4c 89 e8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 76 05 00 00 45 8b 6d 00 44 89 ee 81 e6 [ 74.570240][ T5644] RSP: 0018:ffffc90003ba7a40 EFLAGS: 00010247 [ 74.576320][ T5644] RAX: 0000000000000000 RBX: ffffc90003ba7c20 RCX: ffff888037d43e80 [ 74.584293][ T5644] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 74.592246][ T5644] RBP: ffffc90003ba7af0 R08: ffff888078fd331f R09: 1ffff1100f1fa663 [ 74.600197][ T5644] R10: dffffc0000000000 R11: ffffed100f1fa664 R12: 1ffff92000774f8b [ 74.608152][ T5644] R13: 0000000000000006 R14: 0000000000000001 R15: dffffc0000000000 [ 74.616108][ T5644] FS: 0000555564c07400(0000) GS:ffff8881234cd000(0000) knlGS:0000000000000000 [ 74.625036][ T5644] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.631629][ T5644] CR2: 00007fff34166e74 CR3: 000000007b074000 CR4: 00000000003526f0 [ 74.639597][ T5644] Call Trace: [ 74.642865][ T5644] [ 74.645781][ T5644] ? __pfx_step_into_slowpath+0x10/0x10 [ 74.651309][ T5644] ? lookup_slow+0x64/0x80 [ 74.655728][ T5644] path_lookupat+0x433/0x8c0 [ 74.660303][ T5644] filename_lookup+0x265/0x5d0 [ 74.665048][ T5644] ? __pfx_filename_lookup+0x10/0x10 [ 74.670317][ T5644] ? strncpy_from_user+0x150/0x2c0 [ 74.675408][ T5644] ? do_getname+0x151/0x250 [ 74.679891][ T5644] user_path_at+0x40/0x160 [ 74.684287][ T5644] __se_sys_mount+0x2dc/0x420 [ 74.688940][ T5644] ? __pfx___se_sys_mount+0x10/0x10 [ 74.694116][ T5644] ? __x64_sys_mount+0x20/0xc0 [ 74.698872][ T5644] do_syscall_64+0x171/0x540 [ 74.703444][ T5644] ? trace_irq_disable+0x3b/0x140 [ 74.708448][ T5644] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.714510][ T5644] ? clear_bhb_loop+0x70/0xc0 [ 74.719167][ T5644] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.725040][ T5644] RIP: 0033:0x00007fdbf37e4949 [ 74.729802][ T5644] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 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 d8 ff ff ff f7 d8 64 89 01 48 [ 74.749384][ T5644] RSP: 002b:00007fff0f8baee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 74.757776][ T5644] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007fdbf37e4949 [ 74.765729][ T5644] RDX: 0000000000000000 RSI: 00002000000000c0 RDI: 0000000000000000 [ 74.773679][ T5644] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 74.781631][ T5644] R10: 0000000000004000 R11: 0000000000000246 R12: 00007fff0f8baf20 [ 74.789582][ T5644] R13: 0000000000000002 R14: 431bde82d7b634db R15: 00007fdbf384404b [ 74.797539][ T5644] [ 74.800538][ T5644] Modules linked in: [ 74.804577][ T5644] ---[ end trace 0000000000000000 ]--- [ 74.810824][ T5644] RIP: 0010:step_into_slowpath+0x112/0x810 [ 74.810850][ T5644] Code: 24 1f 00 49 bf 00 00 00 00 00 fc ff df 43 0f b6 04 3c 84 c0 0f 85 75 05 00 00 45 8b 75 00 4c 8b 6c 24 48 4c 89 e8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 76 05 00 00 45 8b 6d 00 44 89 ee 81 e6 [ 74.810865][ T5644] RSP: 0018:ffffc90003ba7a40 EFLAGS: 00010247 [ 74.810881][ T5644] RAX: 0000000000000000 RBX: ffffc90003ba7c20 RCX: ffff888037d43e80 [ 74.810893][ T5644] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 74.810903][ T5644] RBP: ffffc90003ba7af0 R08: ffff888078fd331f R09: 1ffff1100f1fa663 [ 74.810916][ T5644] R10: dffffc0000000000 R11: ffffed100f1fa664 R12: 1ffff92000774f8b [ 74.810929][ T5644] R13: 0000000000000006 R14: 0000000000000001 R15: dffffc0000000000 [ 74.810940][ T5644] FS: 0000555564c07400(0000) GS:ffff8881234cd000(0000) knlGS:0000000000000000 [ 74.810954][ T5644] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.810966][ T5644] CR2: 00007fff34166e74 CR3: 000000007b074000 CR4: 00000000003526f0 [ 74.810983][ T5644] Kernel panic - not syncing: Fatal exception [ 74.911758][ T5644] Kernel Offset: disabled [ 74.916092][ T5644] Rebooting in 86400 seconds..