syzkaller syzkaller login: [ 21.563559][ T1062] cgroup: Unknown subsys name 'net' [ 21.564718][ T1062] cgroup: Unknown subsys name 'net_prio' [ 21.566099][ T1062] cgroup: Unknown subsys name 'devices' [ 21.566979][ T1062] cgroup: Unknown subsys name 'blkio' [ 21.680221][ T1062] cgroup: Unknown subsys name 'hugetlb' [ 21.686743][ T1062] cgroup: Unknown subsys name 'rlimit' [ 21.872987][ T1062] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 22.893008][ T1065] syz-executor.0 (1065) used greatest stack depth: 11640 bytes left Warning: Permanently added '10.128.0.64' (ED25519) to the list of known hosts. 2023/09/02 16:21:41 ignoring optional flag "sandboxArg"="0" 2023/09/02 16:21:41 parsed 1 programs 2023/09/02 16:21:41 executed programs: 0 [ 40.583847][ T1594] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 41.574211][ T2018] loop0: detected capacity change from 0 to 8192 [ 41.583448][ T2018] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 41.594787][ T2018] REISERFS (device loop0): using ordered data mode [ 41.602780][ T2018] reiserfs: using flush barriers [ 41.608463][ T2018] 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 [ 41.625247][ T2018] REISERFS (device loop0): checking transaction log (loop0) [ 41.639859][ T2018] REISERFS (device loop0): Using r5 hash to sort names [ 41.647591][ T2018] REISERFS (device loop0): using 3.5.x disk format [ 41.654759][ T2018] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 41.667973][ T2018] ------------[ cut here ]------------ [ 41.673961][ T2018] kernel BUG at fs/reiserfs/journal.c:505! [ 41.680369][ T2018] invalid opcode: 0000 [#1] PREEMPT SMP [ 41.686011][ T2018] CPU: 1 PID: 2018 Comm: syz-executor.0 Not tainted 5.15.130-syzkaller #0 [ 41.694665][ T2018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 41.705480][ T2018] RIP: 0010:reiserfs_in_journal+0x15a/0x1b0 [ 41.711771][ T2018] Code: 48 c1 e6 03 49 8b 84 31 d8 02 00 00 48 85 c0 75 0b eb 19 48 8b 40 40 48 85 c0 74 10 8b 48 10 48 39 ca 75 ef 48 3b 78 08 75 e9 <0f> 0b 48 8b 87 60 06 00 00 48 83 80 e8 04 00 00 01 31 c0 5b 5d c3 [ 41.733916][ T2018] RSP: 0018:ffffc90000e139a8 EFLAGS: 00010246 [ 41.742248][ T2018] RAX: ffffc9000290b048 RBX: ffffc90000e139ec RCX: 0000000000000213 [ 41.750905][ T2018] RDX: 0000000000000213 RSI: 0000000000007b30 RDI: ffff88810ab0b000 [ 41.759281][ T2018] RBP: 0000000000000213 R08: ffffc90002909328 R09: ffffc900028e9000 [ 41.768711][ T2018] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881089471f8 [ 41.777931][ T2018] R13: ffff88810ab0b000 R14: 0000000000000011 R15: ffffc90000e13a8c [ 41.786567][ T2018] FS: 00007f28e2c5d6c0(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 [ 41.796359][ T2018] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.803212][ T2018] CR2: 00007f0559bd5ed8 CR3: 0000000109643000 CR4: 00000000003506e0 [ 41.811247][ T2018] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.819529][ T2018] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.827784][ T2018] Call Trace: [ 41.831381][ T2018] [ 41.834994][ T2018] ? __die+0x58/0x97 [ 41.839466][ T2018] ? die+0x26/0x40 [ 41.843166][ T2018] ? do_trap+0xc6/0x120 [ 41.847782][ T2018] ? reiserfs_in_journal+0x15a/0x1b0 [ 41.853352][ T2018] ? do_error_trap+0x60/0x80 [ 41.858088][ T2018] ? reiserfs_in_journal+0x15a/0x1b0 [ 41.867198][ T2018] ? exc_invalid_op+0x4e/0x70 [ 41.872427][ T2018] ? reiserfs_in_journal+0x15a/0x1b0 [ 41.879570][ T2018] ? asm_exc_invalid_op+0x16/0x20 [ 41.885348][ T2018] ? reiserfs_in_journal+0x15a/0x1b0 [ 41.892587][ T2018] ? reiserfs_in_journal+0x19b/0x1b0 [ 41.898592][ T2018] scan_bitmap_block.constprop.0+0xef/0x3b0 [ 41.905076][ T2018] reiserfs_allocate_blocknrs+0x6f0/0xe90 [ 41.911821][ T2018] reiserfs_get_block+0x2eb/0x10b0 [ 41.916907][ T2018] ? memcg_slab_post_alloc_hook+0xef/0x2b0 [ 41.924424][ T2018] __block_write_begin_int+0x140/0x560 [ 41.930404][ T2018] ? reiserfs_commit_write+0x1e0/0x1e0 [ 41.936271][ T2018] reiserfs_write_begin+0xf3/0x230 [ 41.941731][ T2018] generic_perform_write+0xbf/0x1f0 [ 41.946997][ T2018] __generic_file_write_iter+0x147/0x1d0 [ 41.953049][ T2018] generic_file_write_iter+0x58/0xa0 [ 41.958340][ T2018] new_sync_write+0x114/0x1a0 [ 41.963223][ T2018] vfs_write+0x248/0x2e0 [ 41.967534][ T2018] ksys_write+0x63/0xe0 [ 41.971884][ T2018] do_syscall_64+0x35/0x80 [ 41.976526][ T2018] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 41.982577][ T2018] RIP: 0033:0x7f28e30dab29 [ 41.987145][ T2018] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 [ 42.007690][ T2018] RSP: 002b:00007f28e2c5d0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 42.016426][ T2018] RAX: ffffffffffffffda RBX: 00007f28e31f9f80 RCX: 00007f28e30dab29 [ 42.024900][ T2018] RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000007 [ 42.033711][ T2018] RBP: 00007f28e312647a R08: 0000000000000000 R09: 0000000000000000 [ 42.041863][ T2018] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 42.049804][ T2018] R13: 0000000000000006 R14: 00007f28e31f9f80 R15: 00007ffc42198e78 [ 42.057896][ T2018] [ 42.060970][ T2018] Modules linked in: [ 42.065183][ T2018] ---[ end trace 2164957701c060c9 ]--- [ 42.070940][ T2018] RIP: 0010:reiserfs_in_journal+0x15a/0x1b0 [ 42.076976][ T2018] Code: 48 c1 e6 03 49 8b 84 31 d8 02 00 00 48 85 c0 75 0b eb 19 48 8b 40 40 48 85 c0 74 10 8b 48 10 48 39 ca 75 ef 48 3b 78 08 75 e9 <0f> 0b 48 8b 87 60 06 00 00 48 83 80 e8 04 00 00 01 31 c0 5b 5d c3 [ 42.097846][ T2018] RSP: 0018:ffffc90000e139a8 EFLAGS: 00010246 [ 42.104236][ T2018] RAX: ffffc9000290b048 RBX: ffffc90000e139ec RCX: 0000000000000213 [ 42.112544][ T2018] RDX: 0000000000000213 RSI: 0000000000007b30 RDI: ffff88810ab0b000 [ 42.120713][ T2018] RBP: 0000000000000213 R08: ffffc90002909328 R09: ffffc900028e9000 [ 42.128995][ T2018] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881089471f8 [ 42.137233][ T2018] R13: ffff88810ab0b000 R14: 0000000000000011 R15: ffffc90000e13a8c [ 42.145663][ T2018] FS: 00007f28e2c5d6c0(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 [ 42.155277][ T2018] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.162151][ T2018] CR2: 00007f0559bd5ed8 CR3: 0000000109643000 CR4: 00000000003506e0 [ 42.170876][ T2018] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.181792][ T2018] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.190456][ T2018] Kernel panic - not syncing: Fatal exception [ 42.199037][ T2018] Kernel Offset: disabled [ 42.203734][ T2018] Rebooting in 86400 seconds..