Warning: Permanently added '10.128.0.89' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 51.175431][ T8436] loop0: detected capacity change from 131391 to 0 [ 51.188714][ T8436] REISERFS (device loop0): found reiserfs format "3.6" with standard journal [ 51.198247][ T8436] REISERFS (device loop0): using ordered data mode [ 51.204772][ T8436] reiserfs: using flush barriers [ 51.212459][ T8436] REISERFS (device loop0): journal params: device loop0, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 [ 51.233298][ T8436] REISERFS (device loop0): checking transaction log (loop0) [ 52.421696][ T8436] REISERFS (device loop0): Using rupasov hash to sort names [ 52.429928][ T8436] general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] PREEMPT SMP KASAN [ 52.441770][ T8436] KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f] [ 52.450318][ T8436] CPU: 0 PID: 8436 Comm: syz-executor159 Not tainted 5.11.0-rc6-syzkaller #0 [ 52.459289][ T8436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.469443][ T8436] RIP: 0010:reiserfs_security_init+0x24a/0x440 [ 52.475617][ T8436] Code: 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 fe 52 b7 ff 48 8b 1b 48 83 c3 68 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 d8 52 b7 ff 4d 85 ed b8 a2 00 00 00 [ 52.495247][ T8436] RSP: 0018:ffffc90000faf9c0 EFLAGS: 00010202 [ 52.501303][ T8436] RAX: 000000000000000d RBX: 0000000000000068 RCX: dffffc0000000000 [ 52.509259][ T8436] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 52.517215][ T8436] RBP: 0000000000280202 R08: ffffffff8203c885 R09: ffffffff8203c757 [ 52.525172][ T8436] R10: 0000000000000002 R11: ffff88801d545340 R12: ffff888032248010 [ 52.533152][ T8436] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 52.541122][ T8436] FS: 00000000009f9300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 52.550050][ T8436] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.556636][ T8436] CR2: 000055da3ae6b5c0 CR3: 000000002113e000 CR4: 00000000001506f0 [ 52.564606][ T8436] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.572570][ T8436] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.580532][ T8436] Call Trace: [ 52.583811][ T8436] reiserfs_mkdir+0x229/0x800 [ 52.588496][ T8436] reiserfs_xattr_init+0x344/0x730 [ 52.593631][ T8436] reiserfs_fill_super+0x2aa1/0x3150 [ 52.598956][ T8436] ? vsnprintf+0x1a07/0x1aa0 [ 52.603532][ T8436] ? snprintf+0x6f/0x90 [ 52.607672][ T8436] ? set_blocksize+0x1f5/0x3c0 [ 52.612423][ T8436] mount_bdev+0x26c/0x3a0 [ 52.616912][ T8436] ? reiserfs_kill_sb+0x150/0x150 [ 52.621936][ T8436] legacy_get_tree+0xea/0x180 [ 52.626604][ T8436] ? remove_save_link+0x3e0/0x3e0 [ 52.631677][ T8436] vfs_get_tree+0x86/0x270 [ 52.636109][ T8436] path_mount+0x17ad/0x2a00 [ 52.640616][ T8436] __se_sys_mount+0x28c/0x320 [ 52.645278][ T8436] ? lockdep_hardirqs_on+0x8d/0x130 [ 52.650472][ T8436] do_syscall_64+0x2d/0x70 [ 52.654874][ T8436] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.660751][ T8436] RIP: 0033:0x445b4a [ 52.664631][ T8436] Code: 48 c7 c2 c0 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 a8 00 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 52.684841][ T8436] RSP: 002b:00007fff6fa321d8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 52.693258][ T8436] RAX: ffffffffffffffda RBX: 00007fff6fa32230 RCX: 0000000000445b4a [ 52.701225][ T8436] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fff6fa321f0 [ 52.709193][ T8436] RBP: 00007fff6fa321f0 R08: 00007fff6fa32230 R09: 0000000000000000 [ 52.717179][ T8436] R10: 0000000000000000 R11: 0000000000000286 R12: 00000000200002a8 [ 52.725148][ T8436] R13: 0000000000000003 R14: 0000000000000004 R15: 0000000000000007 [ 52.733122][ T8436] Modules linked in: [ 52.738299][ T8436] ---[ end trace 871269fc42b76c5b ]--- [ 52.743853][ T8436] RIP: 0010:reiserfs_security_init+0x24a/0x440 [ 52.750580][ T8436] Code: 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 fe 52 b7 ff 48 8b 1b 48 83 c3 68 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 d8 52 b7 ff 4d 85 ed b8 a2 00 00 00 [ 52.771441][ T8436] RSP: 0018:ffffc90000faf9c0 EFLAGS: 00010202 [ 52.778542][ T8436] RAX: 000000000000000d RBX: 0000000000000068 RCX: dffffc0000000000 [ 52.786531][ T8436] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 52.795174][ T8436] RBP: 0000000000280202 R08: ffffffff8203c885 R09: ffffffff8203c757 [ 52.803713][ T8436] R10: 0000000000000002 R11: ffff88801d545340 R12: ffff888032248010 [ 52.812140][ T8436] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 52.820717][ T8436] FS: 00000000009f9300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 52.830196][ T8436] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.837636][ T8436] CR2: 00007fdffa979028 CR3: 000000002113e000 CR4: 00000000001506f0 [ 52.845616][ T8436] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.854354][ T8436] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.862836][ T8436] Kernel panic - not syncing: Fatal exception [ 52.869332][ T8436] Kernel Offset: disabled [ 52.873662][ T8436] Rebooting in 86400 seconds..