./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor806096197 <...> Warning: Permanently added '10.128.10.33' (ED25519) to the list of known hosts. execve("./syz-executor806096197", ["./syz-executor806096197"], 0x7fff9a588c90 /* 10 vars */) = 0 brk(NULL) = 0x55558d597000 brk(0x55558d597d00) = 0x55558d597d00 arch_prctl(ARCH_SET_FS, 0x55558d597380) = 0 set_tid_address(0x55558d597650) = 5823 set_robust_list(0x55558d597660, 24) = 0 rseq(0x55558d597ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor806096197", 4096) = 27 getrandom("\x96\x94\x56\x83\x17\x85\x2d\x69", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558d597d00 brk(0x55558d5b8d00) = 0x55558d5b8d00 brk(0x55558d5b9000) = 0x55558d5b9000 mprotect(0x7fe31574f000, 16384, PROT_READ) = 0 mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000 mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000 mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5825 attached [pid 5825] set_robust_list(0x55558d597660, 24 [pid 5823] <... clone resumed>, child_tidptr=0x55558d597650) = 5825 [pid 5825] <... set_robust_list resumed>) = 0 [pid 5825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5825] setpgid(0, 0) = 0 [pid 5825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5825] write(3, "1000", 4) = 4 [pid 5825] close(3) = 0 [pid 5825] write(1, "executing program\n", 18executing program ) = 18 [pid 5825] memfd_create("syzkaller", 0) = 3 [pid 5825] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe30d200000 [pid 5825] 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"..., 262144) = 262144 [pid 5825] munmap(0x7fe30d200000, 138412032) = 0 [pid 5825] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5825] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5825] close(3) = 0 [pid 5825] close(4) = 0 [pid 5825] mkdir("./bus", 0777) = 0 [ 60.026179][ T5825] loop0: detected capacity change from 0 to 512 [ 60.067696][ T5825] ======================================================= [ 60.067696][ T5825] WARNING: The mand mount option has been deprecated and [ 60.067696][ T5825] and is ignored by this kernel. Remove the mand [ 60.067696][ T5825] option from the mount to silence this warning. [ 60.067696][ T5825] ======================================================= [pid 5825] mount("/dev/loop0", "./bus", "ext4", MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_RELATIME, "jqfmt=vfsv0,nojournal_checksum,data_err=abort,barrier,test_dummy_encryption,noauto_da_alloc,,errors="...) = 0 [pid 5825] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5825] chdir("./bus") = 0 [ 60.133800][ T5825] EXT4-fs (loop0): Test dummy encryption mode enabled [ 60.146521][ T5825] EXT4-fs warning (device loop0): ext4_expand_extra_isize_ea:2863: Unable to expand inode 17. Delete some EAs or run e2fsck. [ 60.160048][ T5825] EXT4-fs (loop0): 1 truncate cleaned up [ 60.166795][ T5825] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [pid 5825] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5825] chdir("./file0") = 0 [ 60.232130][ T5825] ------------[ cut here ]------------ [ 60.237841][ T5825] bad length passed for symlink [/tmp/syz-imagegen2884317625/] (got 39, expected 29) [ 60.237969][ T5825] WARNING: CPU: 0 PID: 5825 at ./include/linux/fs.h:803 inode_set_cached_link+0xd0/0x110 [ 60.257497][ T5825] Modules linked in: [ 60.261394][ T5825] CPU: 0 UID: 0 PID: 5825 Comm: syz-executor806 Not tainted 6.14.0-rc2-syzkaller-00039-g09fbf3d50205 #0 [ 60.272586][ T5825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 60.282726][ T5825] RIP: 0010:inode_set_cached_link+0xd0/0x110 [ 60.288817][ T5825] Code: 41 5f 5d c3 cc cc cc cc e8 6d ff 46 ff c6 05 1a 04 8c 0d 01 90 48 c7 c7 20 be 1d 8c 4c 89 f6 44 89 fa 89 e9 e8 b1 a8 07 ff 90 <0f> 0b 90 90 e9 6a ff ff ff 89 f9 80 e1 07 80 c1 03 38 c1 7c a1 e8 [ 60.308474][ T5825] RSP: 0018:ffffc90003e3f938 EFLAGS: 00010246 [ 60.314573][ T5825] RAX: 5945a33ef4aa7700 RBX: ffff88807cc44808 RCX: ffff8880305f8000 [ 60.322549][ T5825] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 60.330577][ T5825] RBP: 000000000000001d R08: ffffffff817ffb32 R09: 1ffff110170c519a [ 60.338576][ T5825] R10: dffffc0000000000 R11: ffffed10170c519b R12: ffff88807cc44808 [ 60.346616][ T5825] R13: dffffc0000000000 R14: ffff88807cc44558 R15: 0000000000000027 [ 60.354648][ T5825] FS: 000055558d597380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 60.363638][ T5825] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.370220][ T5825] CR2: 00007fc9fbaff440 CR3: 000000007faaa000 CR4: 00000000003526f0 [ 60.378241][ T5825] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.386258][ T5825] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.394284][ T5825] Call Trace: [ 60.397566][ T5825] [ 60.400483][ T5825] ? __warn+0x165/0x4d0 [ 60.404718][ T5825] ? inode_set_cached_link+0xd0/0x110 [ 60.410110][ T5825] ? report_bug+0x2b3/0x500 [ 60.414666][ T5825] ? inode_set_cached_link+0xd0/0x110 [ 60.420069][ T5825] ? handle_bug+0x60/0x90 [ 60.424464][ T5825] ? exc_invalid_op+0x1a/0x50 [ 60.429155][ T5825] ? asm_exc_invalid_op+0x1a/0x20 [ 60.434227][ T5825] ? __warn_printk+0x292/0x360 [ 60.439004][ T5825] ? inode_set_cached_link+0xd0/0x110 [ 60.444431][ T5825] ? inode_set_cached_link+0xcf/0x110 [ 60.449814][ T5825] __ext4_iget+0x2ea4/0x3f30 [ 60.454433][ T5825] ? __pfx_lock_release+0x10/0x10 [ 60.459481][ T5825] ? __pfx___ext4_iget+0x10/0x10 [ 60.464491][ T5825] ? ext4_fname_free_filename+0x89/0xb0 [ 60.470043][ T5825] ? rcu_is_watching+0x15/0xb0 [ 60.474836][ T5825] ? ext4_fname_free_filename+0x89/0xb0 [ 60.480386][ T5825] ? kfree+0x4e/0x430 [ 60.484491][ T5825] ext4_lookup+0x3e3/0x750 [ 60.488934][ T5825] ? d_alloc+0x142/0x190 [ 60.493227][ T5825] ? do_raw_spin_lock+0x14f/0x370 [ 60.498264][ T5825] ? __pfx_ext4_lookup+0x10/0x10 [ 60.503370][ T5825] ? _raw_spin_unlock+0x28/0x50 [ 60.508231][ T5825] ? d_alloc+0x142/0x190 [ 60.512467][ T5825] lookup_one_qstr_excl+0x126/0x2b0 [ 60.517708][ T5825] filename_create+0x297/0x540 [ 60.522481][ T5825] ? __pfx_filename_create+0x10/0x10 [ 60.527828][ T5825] ? __might_fault+0xaa/0x120 [ 60.532522][ T5825] do_mkdirat+0xbd/0x3a0 [ 60.536842][ T5825] ? __check_object_size+0x47a/0x730 [ 60.542149][ T5825] ? __pfx_do_mkdirat+0x10/0x10 [ 60.547066][ T5825] ? strncpy_from_user+0x146/0x270 [ 60.552239][ T5825] ? getname_flags+0x1e3/0x540 [ 60.557064][ T5825] __x64_sys_mkdir+0x6c/0x80 [ 60.561661][ T5825] do_syscall_64+0xf3/0x230 [ 60.566219][ T5825] ? clear_bhb_loop+0x35/0x90 [ 60.570906][ T5825] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 60.576852][ T5825] RIP: 0033:0x7fe3156dbb99 [ 60.581284][ T5825] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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 [ 60.600953][ T5825] RSP: 002b:00007ffec20c2e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 60.609407][ T5825] RAX: ffffffffffffffda RBX: 0000400000000080 RCX: 00007fe3156dbb99 [ 60.617423][ T5825] RDX: 00007fe3156dbb99 RSI: 0000000000000000 RDI: 0000400000000080 [ 60.625422][ T5825] RBP: 00007fe31574f5f0 R08: 000055558d5984c0 R09: 000055558d5984c0 [ 60.633442][ T5825] R10: 00007ffec20c2d20 R11: 0000000000000246 R12: 00007ffec20c2e80 [ 60.641417][ T5825] R13: 00007ffec20c30a8 R14: 431bde82d7b634db R15: 00007fe31572403b [ 60.649451][ T5825] [ 60.652490][ T5825] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 60.659770][ T5825] CPU: 0 UID: 0 PID: 5825 Comm: syz-executor806 Not tainted 6.14.0-rc2-syzkaller-00039-g09fbf3d50205 #0 [ 60.670859][ T5825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 60.680903][ T5825] Call Trace: [ 60.684177][ T5825] [ 60.687097][ T5825] dump_stack_lvl+0x241/0x360 [ 60.691771][ T5825] ? __pfx_dump_stack_lvl+0x10/0x10 [ 60.696958][ T5825] ? __pfx__printk+0x10/0x10 [ 60.701538][ T5825] ? vscnprintf+0x5d/0x90 [ 60.705859][ T5825] panic+0x349/0x880 [ 60.709755][ T5825] ? __warn+0x174/0x4d0 [ 60.713907][ T5825] ? __pfx_panic+0x10/0x10 [ 60.718328][ T5825] __warn+0x344/0x4d0 [ 60.722309][ T5825] ? inode_set_cached_link+0xd0/0x110 [ 60.727680][ T5825] report_bug+0x2b3/0x500 [ 60.732033][ T5825] ? inode_set_cached_link+0xd0/0x110 [ 60.737413][ T5825] handle_bug+0x60/0x90 [ 60.741566][ T5825] exc_invalid_op+0x1a/0x50 [ 60.746065][ T5825] asm_exc_invalid_op+0x1a/0x20 [ 60.750911][ T5825] RIP: 0010:inode_set_cached_link+0xd0/0x110 [ 60.756894][ T5825] Code: 41 5f 5d c3 cc cc cc cc e8 6d ff 46 ff c6 05 1a 04 8c 0d 01 90 48 c7 c7 20 be 1d 8c 4c 89 f6 44 89 fa 89 e9 e8 b1 a8 07 ff 90 <0f> 0b 90 90 e9 6a ff ff ff 89 f9 80 e1 07 80 c1 03 38 c1 7c a1 e8 [ 60.776494][ T5825] RSP: 0018:ffffc90003e3f938 EFLAGS: 00010246 [ 60.782554][ T5825] RAX: 5945a33ef4aa7700 RBX: ffff88807cc44808 RCX: ffff8880305f8000 [ 60.790514][ T5825] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 60.798472][ T5825] RBP: 000000000000001d R08: ffffffff817ffb32 R09: 1ffff110170c519a [ 60.806434][ T5825] R10: dffffc0000000000 R11: ffffed10170c519b R12: ffff88807cc44808 [ 60.814394][ T5825] R13: dffffc0000000000 R14: ffff88807cc44558 R15: 0000000000000027 [ 60.822358][ T5825] ? __warn_printk+0x292/0x360 [ 60.827123][ T5825] ? inode_set_cached_link+0xcf/0x110 [ 60.832492][ T5825] __ext4_iget+0x2ea4/0x3f30 [ 60.837075][ T5825] ? __pfx_lock_release+0x10/0x10 [ 60.842103][ T5825] ? __pfx___ext4_iget+0x10/0x10 [ 60.847032][ T5825] ? ext4_fname_free_filename+0x89/0xb0 [ 60.852565][ T5825] ? rcu_is_watching+0x15/0xb0 [ 60.857327][ T5825] ? ext4_fname_free_filename+0x89/0xb0 [ 60.862857][ T5825] ? kfree+0x4e/0x430 [ 60.866837][ T5825] ext4_lookup+0x3e3/0x750 [ 60.871242][ T5825] ? d_alloc+0x142/0x190 [ 60.875479][ T5825] ? do_raw_spin_lock+0x14f/0x370 [ 60.880493][ T5825] ? __pfx_ext4_lookup+0x10/0x10 [ 60.885427][ T5825] ? _raw_spin_unlock+0x28/0x50 [ 60.890263][ T5825] ? d_alloc+0x142/0x190 [ 60.894498][ T5825] lookup_one_qstr_excl+0x126/0x2b0 [ 60.899689][ T5825] filename_create+0x297/0x540 [ 60.904444][ T5825] ? __pfx_filename_create+0x10/0x10 [ 60.909715][ T5825] ? __might_fault+0xaa/0x120 [ 60.914391][ T5825] do_mkdirat+0xbd/0x3a0 [ 60.918620][ T5825] ? __check_object_size+0x47a/0x730 [ 60.923897][ T5825] ? __pfx_do_mkdirat+0x10/0x10 [ 60.928730][ T5825] ? strncpy_from_user+0x146/0x270 [ 60.933836][ T5825] ? getname_flags+0x1e3/0x540 [ 60.938594][ T5825] __x64_sys_mkdir+0x6c/0x80 [ 60.943170][ T5825] do_syscall_64+0xf3/0x230 [ 60.947663][ T5825] ? clear_bhb_loop+0x35/0x90 [ 60.952332][ T5825] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 60.958217][ T5825] RIP: 0033:0x7fe3156dbb99 [ 60.962618][ T5825] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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 [ 60.982210][ T5825] RSP: 002b:00007ffec20c2e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 60.990613][ T5825] RAX: ffffffffffffffda RBX: 0000400000000080 RCX: 00007fe3156dbb99 [ 60.998573][ T5825] RDX: 00007fe3156dbb99 RSI: 0000000000000000 RDI: 0000400000000080 [ 61.006533][ T5825] RBP: 00007fe31574f5f0 R08: 000055558d5984c0 R09: 000055558d5984c0 [ 61.014492][ T5825] R10: 00007ffec20c2d20 R11: 0000000000000246 R12: 00007ffec20c2e80 [ 61.022450][ T5825] R13: 00007ffec20c30a8 R14: 431bde82d7b634db R15: 00007fe31572403b [ 61.030421][ T5825] [ 61.033710][ T5825] Kernel Offset: disabled [ 61.038054][ T5825] Rebooting in 86400 seconds..