./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1571300391 <...> DUID 00:04:7c:8f:25:e4:1e:61:d4:15:b8:1c:50:2a:7f:f5:0b:01 forked to background, child pid 4660 [ 37.637978][ T4661] 8021q: adding VLAN 0 to HW filter on device bond0 [ 37.664589][ T4661] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.14' (ECDSA) to the list of known hosts. execve("./syz-executor1571300391", ["./syz-executor1571300391"], 0x7ffc6d394bf0 /* 10 vars */) = 0 brk(NULL) = 0x555555bc0000 brk(0x555555bc0c40) = 0x555555bc0c40 arch_prctl(ARCH_SET_FS, 0x555555bc0300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1571300391", 4096) = 28 brk(0x555555be1c40) = 0x555555be1c40 brk(0x555555be2000) = 0x555555be2000 mprotect(0x7faa7bf35000, 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) = 0x7faa73a76000 syzkaller login: [ 66.559330][ T4995] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4995 'syz-executor157' 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 munmap(0x7faa73a76000, 16777216) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 mkdir("./file0", 0777) = 0 mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_REC|MS_POSIXACL, "") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 chdir("./file0") = 0 ioctl(4, LOOP_CLR_FD) = 0 close(4) = 0 [ 66.728973][ T4995] loop0: detected capacity change from 0 to 32768 [ 66.757067][ T27] audit: type=1800 audit(1687262667.361:2): pid=4995 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor157" name="file2" dev="loop0" ino=5 res=0 errno=0 [ 66.777417][ T4995] ERROR: (device loop0): xtTruncate: XT_GETPAGE: xtree page corrupt [ 66.777417][ T4995] [ 66.789048][ T4995] ERROR: (device loop0): remounting filesystem as read-only [ 66.796926][ T4995] BUG at fs/jfs/jfs_txnmgr.c:523 assert(tblk->next == 0) [ 66.804520][ T4995] ------------[ cut here ]------------ [ 66.809994][ T4995] kernel BUG at fs/jfs/jfs_txnmgr.c:523! [ 66.815865][ T4995] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 66.821942][ T4995] CPU: 1 PID: 4995 Comm: syz-executor157 Not tainted 6.4.0-rc7-syzkaller-00014-g692b7dc87ca6 #0 [ 66.832375][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 66.842426][ T4995] RIP: 0010:txEnd+0x556/0x560 [ 66.847111][ T4995] Code: fe e9 cd fe ff ff e8 e9 71 80 fe 48 c7 c7 00 81 21 8b 48 c7 c6 39 7d 21 8b ba 0b 02 00 00 48 c7 c1 40 81 21 8b e8 4a a0 a2 07 <0f> 0b 0f 1f 84 00 00 00 00 00 66 0f 1f 00 55 41 57 41 56 41 55 41 [ 66.866716][ T4995] RSP: 0018:ffffc90003a1f5b0 EFLAGS: 00010246 [ 66.872779][ T4995] RAX: 0000000000000036 RBX: 0000000000000001 RCX: 41752a4d4c338600 [ 66.880745][ T4995] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 66.888715][ T4995] RBP: 1ffff920004ce227 R08: ffffffff816f00ac R09: fffff52000743e2d [ 66.896686][ T4995] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 66.904660][ T4995] R13: 0000000000000001 R14: ffffc90002671138 R15: 0000000000000110 [ 66.912633][ T4995] FS: 0000555555bc0300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 66.921565][ T4995] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.928148][ T4995] CR2: 00007ffdb3a73ff8 CR3: 000000007d1a7000 CR4: 00000000003506e0 [ 66.936123][ T4995] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.944113][ T4995] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.952085][ T4995] Call Trace: [ 66.955367][ T4995] [ 66.958307][ T4995] ? __die_body+0x5e/0xa0 [ 66.962654][ T4995] ? die+0x87/0xb0 [ 66.966380][ T4995] ? do_trap+0x11e/0x350 [ 66.970629][ T4995] ? txEnd+0x556/0x560 [ 66.974703][ T4995] ? txEnd+0x556/0x560 [ 66.978778][ T4995] ? do_error_trap+0x141/0x1f0 [ 66.983575][ T4995] ? txEnd+0x556/0x560 [ 66.987651][ T4995] ? do_int3+0x30/0x30 [ 66.991735][ T4995] ? handle_invalid_op+0x2c/0x40 [ 66.996705][ T4995] ? txEnd+0x556/0x560 [ 67.000780][ T4995] ? exc_invalid_op+0x33/0x50 [ 67.005458][ T4995] ? asm_exc_invalid_op+0x1a/0x20 [ 67.010490][ T4995] ? __wake_up_klogd+0xcc/0x100 [ 67.015352][ T4995] ? txEnd+0x556/0x560 [ 67.019430][ T4995] jfs_truncate_nolock+0x2f3/0x390 [ 67.024549][ T4995] ? jfs_direct_IO+0x1e0/0x1e0 [ 67.029312][ T4995] ? unmap_mapping_range+0xf8/0x290 [ 67.034512][ T4995] ? block_truncate_page+0x239/0x800 [ 67.039800][ T4995] jfs_truncate+0xcb/0x140 [ 67.044219][ T4995] jfs_setattr+0x526/0x780 [ 67.048635][ T4995] ? jfs_fsync+0x1c0/0x1c0 [ 67.053056][ T4995] notify_change+0xc8b/0xf40 [ 67.057668][ T4995] do_truncate+0x220/0x300 [ 67.062090][ T4995] ? put_page_bootmem+0x2e0/0x2e0 [ 67.067130][ T4995] ? ima_bprm_check+0x2b0/0x2b0 [ 67.072006][ T4995] path_openat+0x294e/0x3170 [ 67.076612][ T4995] ? do_filp_open+0x490/0x490 [ 67.081297][ T4995] do_filp_open+0x234/0x490 [ 67.085799][ T4995] ? vfs_tmpfile+0x4a0/0x4a0 [ 67.090397][ T4995] ? _raw_spin_unlock+0x28/0x40 [ 67.095252][ T4995] ? alloc_fd+0x59c/0x640 [ 67.099597][ T4995] do_sys_openat2+0x13f/0x500 [ 67.104283][ T4995] ? print_irqtrace_events+0x220/0x220 [ 67.109747][ T4995] ? do_sys_open+0x230/0x230 [ 67.114333][ T4995] ? lockdep_hardirqs_on+0x98/0x140 [ 67.119527][ T4995] ? _raw_spin_unlock_irq+0x2e/0x50 [ 67.124736][ T4995] ? ptrace_notify+0x278/0x380 [ 67.129498][ T4995] __x64_sys_open+0x225/0x270 [ 67.134184][ T4995] ? do_sys_openat2+0x500/0x500 [ 67.139037][ T4995] ? syscall_enter_from_user_mode+0x32/0x230 [ 67.145020][ T4995] ? syscall_enter_from_user_mode+0x8c/0x230 [ 67.151004][ T4995] do_syscall_64+0x41/0xc0 [ 67.155418][ T4995] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 67.161309][ T4995] RIP: 0033:0x7faa7bec2769 [ 67.165719][ T4995] 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 [ 67.185324][ T4995] RSP: 002b:00007ffcd6b116f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 67.193744][ T4995] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faa7bec2769 [ 67.201717][ T4995] RDX: 0000000000000000 RSI: 000000000014527e RDI: 0000000020000040 [ 67.209684][ T4995] RBP: 00007faa7be82000 R08: 0000000000005dea R09: 0000000000000000 [ 67.217654][ T4995] R10: 00007ffcd6b115c0 R11: 0000000000000246 R12: 00007faa7be82090 [ 67.225619][ T4995] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 67.233589][ T4995] [ 67.236601][ T4995] Modules linked in: [ 67.240554][ T4995] ---[ end trace 0000000000000000 ]--- [ 67.246057][ T4995] RIP: 0010:txEnd+0x556/0x560 [ 67.250768][ T4995] Code: fe e9 cd fe ff ff e8 e9 71 80 fe 48 c7 c7 00 81 21 8b 48 c7 c6 39 7d 21 8b ba 0b 02 00 00 48 c7 c1 40 81 21 8b e8 4a a0 a2 07 <0f> 0b 0f 1f 84 00 00 00 00 00 66 0f 1f 00 55 41 57 41 56 41 55 41 [ 67.270413][ T4995] RSP: 0018:ffffc90003a1f5b0 EFLAGS: 00010246 [ 67.276513][ T4995] RAX: 0000000000000036 RBX: 0000000000000001 RCX: 41752a4d4c338600 [ 67.284510][ T4995] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 67.292490][ T4995] RBP: 1ffff920004ce227 R08: ffffffff816f00ac R09: fffff52000743e2d [ 67.300493][ T4995] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 67.308491][ T4995] R13: 0000000000000001 R14: ffffc90002671138 R15: 0000000000000110 [ 67.316481][ T4995] FS: 0000555555bc0300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 67.325432][ T4995] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.332039][ T4995] CR2: 00007ffdb3a73ff8 CR3: 000000007d1a7000 CR4: 00000000003506e0 [ 67.340042][ T4995] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.348058][ T4995] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.356057][ T4995] Kernel panic - not syncing: Fatal exception [ 67.362452][ T4995] Kernel Offset: disabled [ 67.366779][ T4995] Rebooting in 86400 seconds..