syzkaller syzkaller login: [ 23.068005][ T1716] cgroup: Unknown subsys name 'net' [ 23.216527][ T1716] cgroup: Unknown subsys name 'rlimit' [ 23.337160][ T1711] syz-fuzzer[1711]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 23.884073][ T1916] modprobe (1916) used greatest stack depth: 11896 bytes left [ 24.451458][ T1718] syz-executor.0 (1718) used greatest stack depth: 11080 bytes left [ 24.718203][ T1711] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 24.787408][ T1711] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list Warning: Permanently added '10.128.1.153' (ED25519) to the list of known hosts. 2023/09/28 21:48:02 ignoring optional flag "sandboxArg"="0" 2023/09/28 21:48:02 parsed 1 programs 2023/09/28 21:48:02 executed programs: 0 [ 43.496564][ T2654] loop0: detected capacity change from 0 to 8192 [ 43.503737][ T2654] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 43.517527][ T2654] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 43.526714][ T2654] REISERFS (device loop0): using ordered data mode [ 43.533239][ T2654] reiserfs: using flush barriers [ 43.538602][ T2654] 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 [ 43.555964][ T2654] REISERFS (device loop0): checking transaction log (loop0) [ 43.572387][ T2654] REISERFS (device loop0): Using r5 hash to sort names [ 43.579568][ T2654] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 43.621120][ T2658] loop0: detected capacity change from 0 to 8192 [ 43.627995][ T2658] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 43.641149][ T2658] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 43.650486][ T2658] REISERFS (device loop0): using ordered data mode [ 43.657005][ T2658] reiserfs: using flush barriers [ 43.662451][ T2658] 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 [ 43.678824][ T2658] REISERFS (device loop0): checking transaction log (loop0) [ 43.693808][ T2658] REISERFS (device loop0): Using r5 hash to sort names [ 43.700947][ T2658] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 43.745002][ T2662] loop0: detected capacity change from 0 to 8192 [ 43.751853][ T2662] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 43.764882][ T2662] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 43.774402][ T2662] REISERFS (device loop0): using ordered data mode [ 43.781168][ T2662] reiserfs: using flush barriers [ 43.786469][ T2662] 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 [ 43.802902][ T2662] REISERFS (device loop0): checking transaction log (loop0) [ 43.817969][ T2662] REISERFS (device loop0): Using r5 hash to sort names [ 43.824950][ T2662] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 43.834839][ T2662] REISERFS panic (device loop0): vs-12195 balance_leaf: CFR not initialized [ 43.843599][ T2662] ------------[ cut here ]------------ [ 43.849055][ T2662] kernel BUG at fs/reiserfs/prints.c:390! [ 43.854856][ T2662] invalid opcode: 0000 [#1] PREEMPT SMP [ 43.860376][ T2662] CPU: 1 PID: 2662 Comm: syz-executor.0 Not tainted 6.6.0-rc3-syzkaller #0 [ 43.869009][ T2662] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 43.879554][ T2662] RIP: 0010:__reiserfs_panic+0xc9/0xd0 [ 43.885067][ T2662] Code: 0f 44 d8 48 c7 c1 36 1c f3 82 48 0f 44 c8 48 c7 c7 b4 e4 db 82 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 e0 2f 91 84 e8 b7 de 11 01 <0f> 0b 0f 1f 44 00 00 66 0f 1f 00 55 48 89 e5 41 57 41 56 53 48 83 [ 43.904906][ T2662] RSP: 0018:ffffc90002a775c0 EFLAGS: 00010246 [ 43.911109][ T2662] RAX: 0000000000000049 RBX: ffffffff82dbc884 RCX: 9067abedc039c800 [ 43.919135][ T2662] RDX: ffff88813bd282c0 RSI: ffffffff82eadf0a RDI: 00000000ffffffff [ 43.927508][ T2662] RBP: ffffc90002a77640 R08: 0000000000000000 R09: ffffffff832c1d60 [ 43.935615][ T2662] R10: 00000000ffffffff R11: 00000000ffffdfff R12: ffffc90002a777a0 [ 43.943727][ T2662] R13: 0000000000000006 R14: ffffffff82dbc88d R15: ffff888103e8a640 [ 43.951839][ T2662] FS: 00007fcd4395e6c0(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 [ 43.960822][ T2662] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.967457][ T2662] CR2: 00007fcd4393dd58 CR3: 000000010f501000 CR4: 00000000003506e0 [ 43.975399][ T2662] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.984133][ T2662] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.992161][ T2662] Call Trace: [ 43.995850][ T2662] [ 43.998753][ T2662] ? __die_body+0x5e/0xa0 [ 44.003050][ T2662] ? die+0x87/0xb0 [ 44.006834][ T2662] ? do_trap+0xa2/0x170 [ 44.011075][ T2662] ? __reiserfs_panic+0xc9/0xd0 [ 44.016028][ T2662] ? __reiserfs_panic+0xc9/0xd0 [ 44.021033][ T2662] ? handle_invalid_op+0x65/0x80 [ 44.026119][ T2662] ? __reiserfs_panic+0xc9/0xd0 [ 44.031194][ T2662] ? exc_invalid_op+0x33/0x50 [ 44.035841][ T2662] ? asm_exc_invalid_op+0x1a/0x20 [ 44.040959][ T2662] ? __reiserfs_panic+0xc9/0xd0 [ 44.045775][ T2662] ? leaf_insert_into_buf+0x186/0x1e0 [ 44.051210][ T2662] do_balance+0x2837/0x2870 [ 44.055765][ T2662] ? reiserfs_write_lock_nested+0x1f/0x40 [ 44.061797][ T2662] reiserfs_insert_item+0x2bb/0x340 [ 44.067234][ T2662] reiserfs_new_inode+0x648/0x840 [ 44.072225][ T2662] reiserfs_create+0x1b1/0x2a0 [ 44.077126][ T2662] ? reiserfs_lookup+0x290/0x290 [ 44.082114][ T2662] path_openat+0x4f4/0xce0 [ 44.086583][ T2662] do_filp_open+0xac/0x150 [ 44.090965][ T2662] do_sys_openat2+0x7e/0xd0 [ 44.095540][ T2662] __x64_sys_openat+0x7c/0xa0 [ 44.100178][ T2662] do_syscall_64+0x41/0x90 [ 44.104564][ T2662] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 44.110424][ T2662] RIP: 0033:0x7fcd42c7c859 [ 44.114983][ T2662] 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 [ 44.134725][ T2662] RSP: 002b:00007fcd4395e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 44.143101][ T2662] RAX: ffffffffffffffda RBX: 00007fcd42d9bf80 RCX: 00007fcd42c7c859 [ 44.151179][ T2662] RDX: 0000000000000241 RSI: 0000000020000000 RDI: ffffffffffffff9c [ 44.159117][ T2662] RBP: 00007fcd42cd8ad0 R08: 0000000000000000 R09: 0000000000000000 [ 44.167184][ T2662] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 44.175200][ T2662] R13: 0000000000000006 R14: 00007fcd42d9bf80 R15: 00007ffd1226ada8 [ 44.183328][ T2662] [ 44.186316][ T2662] Modules linked in: [ 44.190257][ T2662] ---[ end trace 0000000000000000 ]--- [ 44.195774][ T2662] RIP: 0010:__reiserfs_panic+0xc9/0xd0 [ 44.201334][ T2662] Code: 0f 44 d8 48 c7 c1 36 1c f3 82 48 0f 44 c8 48 c7 c7 b4 e4 db 82 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 e0 2f 91 84 e8 b7 de 11 01 <0f> 0b 0f 1f 44 00 00 66 0f 1f 00 55 48 89 e5 41 57 41 56 53 48 83 [ 44.221484][ T2662] RSP: 0018:ffffc90002a775c0 EFLAGS: 00010246 [ 44.227825][ T2662] RAX: 0000000000000049 RBX: ffffffff82dbc884 RCX: 9067abedc039c800 [ 44.235784][ T2662] RDX: ffff88813bd282c0 RSI: ffffffff82eadf0a RDI: 00000000ffffffff [ 44.244084][ T2662] RBP: ffffc90002a77640 R08: 0000000000000000 R09: ffffffff832c1d60 [ 44.252087][ T2662] R10: 00000000ffffffff R11: 00000000ffffdfff R12: ffffc90002a777a0 [ 44.260400][ T2662] R13: 0000000000000006 R14: ffffffff82dbc88d R15: ffff888103e8a640 [ 44.268470][ T2662] FS: 00007fcd4395e6c0(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 [ 44.277395][ T2662] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.284042][ T2662] CR2: 000056394ca03018 CR3: 000000010f501000 CR4: 00000000003506f0 [ 44.292089][ T2662] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.300119][ T2662] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.308316][ T2662] Kernel panic - not syncing: Fatal exception [ 44.314730][ T2662] Kernel Offset: disabled [ 44.319022][ T2662] Rebooting in 86400 seconds..