./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor332255601 <...> DUID 00:04:76:8b:f6:84:a4:3b:36:39:6c:68:e7:10:38:dd:b7:2c forked to background, child pid 4660 [ 29.718292][ T4661] 8021q: adding VLAN 0 to HW filter on device bond0 [ 29.729390][ T4661] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.132' (ECDSA) to the list of known hosts. execve("./syz-executor332255601", ["./syz-executor332255601"], 0x7ffd0613e9e0 /* 10 vars */) = 0 brk(NULL) = 0x555556e01000 brk(0x555556e01c40) = 0x555556e01c40 arch_prctl(ARCH_SET_FS, 0x555556e01300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor332255601", 4096) = 27 brk(0x555556e22c40) = 0x555556e22c40 brk(0x555556e23000) = 0x555556e23000 mprotect(0x7facb7e07000, 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) = 0x7facaf94d000 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"..., 4194304) = 4194304 munmap(0x7facaf94d000, 4194304) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 syzkaller login: [ 52.668036][ T4991] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4991 'syz-executor332' ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 mkdir("./file0", 0777) = 0 [ 52.711117][ T4991] loop0: detected capacity change from 0 to 8192 [ 52.723298][ T4991] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 52.738086][ T4991] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 52.747771][ T4991] REISERFS (device loop0): using ordered data mode [ 52.754284][ T4991] reiserfs: using flush barriers [ 52.760635][ T4991] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 52.777180][ T4991] REISERFS (device loop0): checking transaction log (loop0) mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 chdir("./file0") = 0 ioctl(4, LOOP_CLR_FD) = 0 close(4) = 0 openat(AT_FDCWD, "blkio.bfq.io_service_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 write(4, "\x99", 1) = 1 openat(AT_FDCWD, "blkio.bfq.io_service_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 write(5, "\x99", 1) = 1 openat(AT_FDCWD, "blkio.bfq.io_service_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6 write(6, "\x00\xda\x62\x1c\xbf\x9e\x38\x66\xd3\xa4\xa4\xed\x1b\x5a\x24\x2f\x8c\xf3\x49\x16\xcd\x58\x1e\x40\x64\x62\x50\xd9\x55\xea\x37\x4f\x75\x60\xdf\x41\xb3\xfc\x40\xcb\x86\x65\x87\x10\x83\xb6\xa0\xe4\x7a\xae\x45\xe0\x1d\xe3\x18\x34\xa2\x19\x13\x2d\xa1\x0d\xf3\xa4\x95\x98\xa0\x25\xd7\x7a\x78\xd3\x0f\xe5\x79\x4f\xfc\x72\x5a\x51\x9b\x92\x62\xd8\x6c\x4c\xa4\x11\xd2\xa7\x2f\xc4\xa8\x2c\x6d\x4c\x8c\xfa\x0b\xf8"..., 183) = 183 openat(AT_FDCWD, "blkio.bfq.io_service_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 7 [ 52.817472][ T4991] REISERFS (device loop0): Using r5 hash to sort names [ 52.824548][ T4991] REISERFS (device loop0): using 3.5.x disk format [ 52.832194][ T4991] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 52.857070][ T4991] ------------[ cut here ]------------ [ 52.862685][ T4991] kernel BUG at fs/reiserfs/journal.c:505! [ 52.869301][ T4991] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 52.875399][ T4991] CPU: 1 PID: 4991 Comm: syz-executor332 Not tainted 6.4.0-rc7-syzkaller-00226-ga92b7d26c743 #0 [ 52.885828][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 52.895976][ T4991] RIP: 0010:reiserfs_in_journal+0xa96/0xaa0 [ 52.901888][ T4991] Code: f6 ff ff 48 8b 4c 24 30 80 e1 07 80 c1 03 38 c1 0f 8c 51 fd ff ff 48 8b 7c 24 30 e8 74 72 b2 ff e9 42 fd ff ff e8 da 8e 5a ff <0f> 0b 0f 1f 84 00 00 00 00 00 66 0f 1f 00 55 41 57 41 56 41 55 41 [ 52.921481][ T4991] RSP: 0018:ffffc9000395eea0 EFLAGS: 00010293 [ 52.927552][ T4991] RAX: ffffffff8230f616 RBX: ffffc900039d3048 RCX: ffff88807de2d940 [ 52.935526][ T4991] RDX: 0000000000000000 RSI: 0000000000000213 RDI: 0000000000000213 [ 52.943519][ T4991] RBP: ffffc900039d3050 R08: ffffffff8230ee5d R09: ffffed100f782009 [ 52.951480][ T4991] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000213 [ 52.959447][ T4991] R13: ffffc900039d12e0 R14: ffff88807a4c2000 R15: dffffc0000000000 [ 52.967418][ T4991] FS: 0000555556e01300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 52.976333][ T4991] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.982924][ T4991] CR2: 0000000020002d30 CR3: 0000000075e66000 CR4: 00000000003506e0 [ 52.990891][ T4991] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.998850][ T4991] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.006819][ T4991] Call Trace: [ 53.010086][ T4991] [ 53.013000][ T4991] ? __die_body+0x5e/0xa0 [ 53.017312][ T4991] ? die+0x87/0xb0 [ 53.021187][ T4991] ? do_trap+0x11e/0x350 [ 53.025434][ T4991] ? reiserfs_in_journal+0xa96/0xaa0 [ 53.030737][ T4991] ? reiserfs_in_journal+0xa96/0xaa0 [ 53.036098][ T4991] ? do_error_trap+0x141/0x1f0 [ 53.040849][ T4991] ? reiserfs_in_journal+0xa96/0xaa0 [ 53.046117][ T4991] ? do_int3+0x30/0x30 [ 53.050169][ T4991] ? report_bug+0x3e4/0x500 [ 53.054699][ T4991] ? handle_invalid_op+0x2c/0x40 [ 53.059707][ T4991] ? reiserfs_in_journal+0xa96/0xaa0 [ 53.064970][ T4991] ? exc_invalid_op+0x33/0x50 [ 53.069641][ T4991] ? asm_exc_invalid_op+0x1a/0x20 [ 53.074649][ T4991] ? reiserfs_in_journal+0x2dd/0xaa0 [ 53.080003][ T4991] ? reiserfs_in_journal+0xa96/0xaa0 [ 53.085272][ T4991] ? reiserfs_in_journal+0xa96/0xaa0 [ 53.090538][ T4991] scan_bitmap_block+0x2e2/0xff0 [ 53.095466][ T4991] ? oid_groups+0x500/0x500 [ 53.099952][ T4991] ? mutex_lock_nested+0x1b/0x20 [ 53.104869][ T4991] reiserfs_allocate_blocknrs+0x2ddd/0x5070 [ 53.110754][ T4991] ? search_by_key+0x4b60/0x4b60 [ 53.115679][ T4991] ? show_alloc_options+0xc00/0xc00 [ 53.120875][ T4991] ? journal_begin+0x1f3/0x360 [ 53.125618][ T4991] ? copy_item_head+0x22/0x30 [ 53.130299][ T4991] reiserfs_get_block+0x3280/0x5130 [ 53.135489][ T4991] ? make_le_item_head+0x570/0x570 [ 53.140577][ T4991] ? __generic_file_write_iter+0x17a/0x400 [ 53.146361][ T4991] ? generic_file_write_iter+0xaf/0x310 [ 53.151890][ T4991] ? vfs_write+0x790/0xb20 [ 53.156291][ T4991] ? ksys_write+0x1a0/0x2c0 [ 53.160862][ T4991] ? do_syscall_64+0x41/0xc0 [ 53.165430][ T4991] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 53.171486][ T4991] ? mark_lock+0x9a/0x340 [ 53.175795][ T4991] ? __lock_acquire+0x1316/0x2070 [ 53.180814][ T4991] ? __lock_acquire+0x2070/0x2070 [ 53.185822][ T4991] ? folio_attach_private+0xce/0x1f0 [ 53.191088][ T4991] ? do_raw_spin_unlock+0x13b/0x8b0 [ 53.196275][ T4991] ? _raw_spin_unlock+0x28/0x40 [ 53.201107][ T4991] ? folio_create_buffers+0x132/0x250 [ 53.206460][ T4991] __block_write_begin_int+0x548/0x1a50 [ 53.211990][ T4991] ? folio_add_lru+0x353/0x6f0 [ 53.216743][ T4991] ? make_le_item_head+0x570/0x570 [ 53.221833][ T4991] ? PageUptodate+0x290/0x290 [ 53.226486][ T4991] ? folio_test_hugetlb+0xa0/0x1d0 [ 53.231579][ T4991] ? __block_write_begin+0x65/0x160 [ 53.236778][ T4991] ? reiserfs_write_begin+0x183/0x520 [ 53.242132][ T4991] reiserfs_write_begin+0x24d/0x520 [ 53.247320][ T4991] generic_perform_write+0x300/0x5e0 [ 53.252601][ T4991] ? generic_file_direct_write+0x460/0x460 [ 53.258388][ T4991] ? __file_remove_privs+0x640/0x640 [ 53.263656][ T4991] ? generic_write_checks+0x160/0x1c0 [ 53.269011][ T4991] __generic_file_write_iter+0x17a/0x400 [ 53.274628][ T4991] generic_file_write_iter+0xaf/0x310 [ 53.279981][ T4991] vfs_write+0x790/0xb20 [ 53.284213][ T4991] ? file_end_write+0x250/0x250 [ 53.289045][ T4991] ? lockdep_hardirqs_on+0x98/0x140 [ 53.294223][ T4991] ? __fdget_pos+0x265/0x2f0 [ 53.298793][ T4991] ksys_write+0x1a0/0x2c0 [ 53.303109][ T4991] ? __ia32_sys_read+0x90/0x90 [ 53.307944][ T4991] ? syscall_enter_from_user_mode+0x32/0x230 [ 53.313908][ T4991] ? syscall_enter_from_user_mode+0x8c/0x230 [ 53.319871][ T4991] do_syscall_64+0x41/0xc0 [ 53.324273][ T4991] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 53.330158][ T4991] RIP: 0033:0x7facb7d99a49 [ 53.334551][ T4991] 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 [ 53.354223][ T4991] RSP: 002b:00007ffe4aeb3d38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 53.362617][ T4991] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007facb7d99a49 [ 53.370571][ T4991] RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000007 [ 53.378525][ T4991] RBP: 00007facb7d592e0 R08: 0000000000000000 R09: 0000000000000000 [ 53.386482][ T4991] R10: 0000000000000000 R11: 0000000000000246 R12: 00007facb7d59370 [ 53.394433][ T4991] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 53.402390][ T4991] [ 53.405402][ T4991] Modules linked in: [ 53.409631][ T4991] ---[ end trace 0000000000000000 ]--- [ 53.415116][ T4991] RIP: 0010:reiserfs_in_journal+0xa96/0xaa0 [ 53.421273][ T4991] Code: f6 ff ff 48 8b 4c 24 30 80 e1 07 80 c1 03 38 c1 0f 8c 51 fd ff ff 48 8b 7c 24 30 e8 74 72 b2 ff e9 42 fd ff ff e8 da 8e 5a ff <0f> 0b 0f 1f 84 00 00 00 00 00 66 0f 1f 00 55 41 57 41 56 41 55 41 [ 53.440918][ T4991] RSP: 0018:ffffc9000395eea0 EFLAGS: 00010293 [ 53.447006][ T4991] RAX: ffffffff8230f616 RBX: ffffc900039d3048 RCX: ffff88807de2d940 [ 53.454960][ T4991] RDX: 0000000000000000 RSI: 0000000000000213 RDI: 0000000000000213 [ 53.462958][ T4991] RBP: ffffc900039d3050 R08: ffffffff8230ee5d R09: ffffed100f782009 [ 53.470956][ T4991] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000213 [ 53.478952][ T4991] R13: ffffc900039d12e0 R14: ffff88807a4c2000 R15: dffffc0000000000 [ 53.487031][ T4991] FS: 0000555556e01300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 53.495942][ T4991] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.502541][ T4991] CR2: 0000558993369ff0 CR3: 0000000075e66000 CR4: 00000000003506f0 [ 53.510539][ T4991] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.518524][ T4991] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.526498][ T4991] Kernel panic - not syncing: Fatal exception [ 53.532695][ T4991] Kernel Offset: disabled [ 53.537009][ T4991] Rebooting in 86400 seconds..