./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3477592408 <...> Warning: Permanently added '10.128.1.132' (ED25519) to the list of known hosts. execve("./syz-executor3477592408", ["./syz-executor3477592408"], 0x7ffcc33c2ee0 /* 10 vars */) = 0 brk(NULL) = 0x555588008000 brk(0x555588008d00) = 0x555588008d00 arch_prctl(ARCH_SET_FS, 0x555588008380) = 0 set_tid_address(0x555588008650) = 5226 set_robust_list(0x555588008660, 24) = 0 rseq(0x555588008ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3477592408", 4096) = 28 getrandom("\x93\x1c\xbe\xe4\x83\x79\xad\x6b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555588008d00 brk(0x555588029d00) = 0x555588029d00 brk(0x55558802a000) = 0x55558802a000 mprotect(0x7f325f140000, 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 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 5227 attached [pid 5227] set_robust_list(0x555588008660, 24) = 0 [pid 5227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5227] setpgid(0, 0 [pid 5226] <... clone resumed>, child_tidptr=0x555588008650) = 5227 [pid 5227] <... setpgid resumed>) = 0 [pid 5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5227] write(3, "1000", 4) = 4 [pid 5227] close(3) = 0 executing program [pid 5227] write(1, "executing program\n", 18) = 18 [pid 5227] memfd_create("syzkaller", 0) = 3 [pid 5227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3256c00000 [pid 5227] 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 [pid 5227] munmap(0x7f3256c00000, 138412032) = 0 [pid 5227] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5227] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5227] close(3) = 0 [pid 5227] close(4) = 0 [pid 5227] mkdir("./file0", 0777) = 0 [ 78.276984][ T5227] loop0: detected capacity change from 0 to 32768 [ 78.366867][ T5227] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI [ 78.379487][ T5227] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 78.388019][ T5227] CPU: 0 UID: 0 PID: 5227 Comm: syz-executor347 Not tainted 6.11.0-rc7-syzkaller-00151-gd42f7708e27c #0 [ 78.399129][ T5227] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 78.409190][ T5227] RIP: 0010:strlen+0x2c/0x70 [ 78.413811][ T5227] Code: 1e fa 41 57 41 56 41 54 53 49 89 fe 48 c7 c0 ff ff ff ff 49 bf 00 00 00 00 00 fc ff df 48 89 fb 49 89 c4 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 75 12 48 ff c3 49 8d 44 24 01 43 80 7c 26 01 [ 78.433515][ T5227] RSP: 0018:ffffc9000324f7c8 EFLAGS: 00010246 [ 78.439586][ T5227] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88802cd15a00 [ 78.447561][ T5227] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 78.455554][ T5227] RBP: ffffc9000324f8c0 R08: ffffffff84394d61 R09: ffffffff84394d37 [ 78.463528][ T5227] R10: 0000000000000004 R11: ffff88802cd15a00 R12: ffffffffffffffff [ 78.471526][ T5227] R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 78.479500][ T5227] FS: 0000555588008380(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000 [ 78.488465][ T5227] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.495067][ T5227] CR2: 00005651fc443668 CR3: 0000000073c3c000 CR4: 00000000003506f0 [ 78.503043][ T5227] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.511079][ T5227] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.519068][ T5227] Call Trace: [ 78.522352][ T5227] [ 78.525285][ T5227] ? __die_body+0x88/0xe0 [ 78.529654][ T5227] ? die_addr+0x108/0x140 [ 78.533993][ T5227] ? exc_general_protection+0x3dd/0x5d0 [ 78.539567][ T5227] ? asm_exc_general_protection+0x26/0x30 [ 78.545292][ T5227] ? bch2_opt_to_text+0xf7/0x330 [ 78.550244][ T5227] ? bch2_opt_to_text+0x121/0x330 [ 78.555271][ T5227] ? strlen+0x2c/0x70 [ 78.559258][ T5227] prt_str+0x30/0x7d0 [ 78.563249][ T5227] ? bch2_opt_to_text+0x14c/0x330 [ 78.568366][ T5227] print_mount_opts+0x29e/0x3e0 [ 78.573227][ T5227] ? __pfx_print_mount_opts+0x10/0x10 [ 78.578724][ T5227] bch2_fs_start+0x36/0x5b0 [ 78.583232][ T5227] ? sget+0x2b8/0x620 [ 78.587241][ T5227] bch2_fs_get_tree+0xd61/0x1700 [ 78.592196][ T5227] ? __pfx_bch2_parse_one_mount_opt+0x10/0x10 [ 78.598282][ T5227] ? __pfx_bch2_fs_get_tree+0x10/0x10 [ 78.603681][ T5227] ? generic_parse_monolithic+0x387/0x400 [ 78.609411][ T5227] ? cap_capable+0x1b4/0x250 [ 78.614010][ T5227] ? bpf_lsm_capable+0x9/0x10 [ 78.618696][ T5227] vfs_get_tree+0x90/0x2b0 [ 78.623251][ T5227] do_new_mount+0x2be/0xb40 [ 78.627763][ T5227] ? __pfx_do_new_mount+0x10/0x10 [ 78.632797][ T5227] __se_sys_mount+0x2d6/0x3c0 [ 78.637475][ T5227] ? __pfx___se_sys_mount+0x10/0x10 [ 78.642673][ T5227] ? do_syscall_64+0x100/0x230 [ 78.647444][ T5227] ? __x64_sys_mount+0x20/0xc0 [ 78.652230][ T5227] do_syscall_64+0xf3/0x230 [ 78.656764][ T5227] ? clear_bhb_loop+0x35/0x90 [ 78.661453][ T5227] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 78.667349][ T5227] RIP: 0033:0x7f325f0c8dea [ 78.671773][ T5227] 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 [ 78.691410][ T5227] RSP: 002b:00007fffa732dc18 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 78.699941][ T5227] RAX: ffffffffffffffda RBX: 00007fffa732dc30 RCX: 00007f325f0c8dea [ 78.707915][ T5227] RDX: 00000000200058c0 RSI: 0000000020005900 RDI: 00007fffa732dc30 [ 78.716001][ T5227] RBP: 0000000000000004 R08: 00007fffa732dc70 R09: 0000000000005934 [ 78.723982][ T5227] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000 [ 78.731964][ T5227] R13: 00007fffa732dc70 R14: 0000000000000003 R15: 0000000001000000 [ 78.739964][ T5227] [ 78.742997][ T5227] Modules linked in: [ 78.750010][ T5227] ---[ end trace 0000000000000000 ]--- [ 78.755561][ T5227] RIP: 0010:strlen+0x2c/0x70 [ 78.760210][ T5227] Code: 1e fa 41 57 41 56 41 54 53 49 89 fe 48 c7 c0 ff ff ff ff 49 bf 00 00 00 00 00 fc ff df 48 89 fb 49 89 c4 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 75 12 48 ff c3 49 8d 44 24 01 43 80 7c 26 01 [ 78.779979][ T5227] RSP: 0018:ffffc9000324f7c8 EFLAGS: 00010246 [ 78.786085][ T5227] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88802cd15a00 [ 78.794118][ T5227] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 78.802099][ T5227] RBP: ffffc9000324f8c0 R08: ffffffff84394d61 R09: ffffffff84394d37 [ 78.810144][ T5227] R10: 0000000000000004 R11: ffff88802cd15a00 R12: ffffffffffffffff [ 78.818185][ T5227] R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 78.826192][ T5227] FS: 0000555588008380(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000 [ 78.835209][ T5227] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.841901][ T5227] CR2: 00005651fc443668 CR3: 0000000073c3c000 CR4: 00000000003506f0 [ 78.849937][ T5227] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.857992][ T5227] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.866026][ T5227] Kernel panic - not syncing: Fatal exception [ 78.872426][ T5227] Kernel Offset: disabled [ 78.876765][ T5227] Rebooting in 86400 seconds..