[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.15.221' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 486.114771] BUG at fs/jfs/jfs_dmap.c:721 assert(nblocks > 0) [ 486.120905] ------------[ cut here ]------------ [ 486.125653] kernel BUG at fs/jfs/jfs_dmap.c:721! [ 486.131954] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 486.137316] Modules linked in: [ 486.140841] CPU: 1 PID: 7982 Comm: syz-executor282 Not tainted 4.14.295-syzkaller #0 [ 486.148699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 486.158028] task: ffff8880b31f0680 task.stack: ffff888092b40000 [ 486.164061] RIP: 0010:dbAlloc.cold+0x33/0x44 [ 486.168439] RSP: 0018:ffff888092b47650 EFLAGS: 00010286 [ 486.173773] RAX: 0000000000000030 RBX: ffff888094aae5a8 RCX: 0000000000000000 [ 486.181013] RDX: 0000000000000000 RSI: ffffffff878bc9e0 RDI: ffffed1012568ec0 [ 486.188255] RBP: ffff888094aae5a8 R08: 0000000000000030 R09: 0000000000000000 [ 486.195494] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 486.202747] R13: ffff888096fc1300 R14: ffff8880b3394cc0 R15: ffff8880a4b924a8 [ 486.209991] FS: 0000555555c14300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 486.218188] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 486.224039] CR2: 0000562e51d5c6ec CR3: 00000000ab30a000 CR4: 00000000003406e0 [ 486.231283] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 486.238525] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 486.245764] Call Trace: [ 486.248330] ? __mark_inode_dirty+0xa9b/0xf40 [ 486.252798] ea_get+0x931/0x1040 [ 486.256139] ? __jfs_getxattr+0x9f/0x340 [ 486.260174] ? ea_release+0x1d0/0x1d0 [ 486.263946] __jfs_getxattr+0xae/0x340 [ 486.267807] ? jfs_initxattrs+0x210/0x210 [ 486.271924] ? process_measurement+0x270/0xb20 [ 486.276482] ? __mutex_lock+0x360/0x1310 [ 486.280514] jfs_xattr_get+0x39/0x50 [ 486.284197] ? __jfs_getxattr+0x340/0x340 [ 486.288316] vfs_getxattr_alloc+0x163/0x2d0 [ 486.292610] ? path_setxattr+0x130/0x130 [ 486.296643] ima_read_xattr+0x2c/0x50 [ 486.300417] process_measurement+0x75a/0xb20 [ 486.304797] ? ima_rdwr_violation_check+0x3a0/0x3a0 [ 486.309787] ? apparmor_file_open+0x4ed/0x910 [ 486.314254] ? apparmor_file_alloc_security+0x800/0x800 [ 486.319588] ? lock_downgrade+0x740/0x740 [ 486.323706] ? generic_file_open+0x68/0x90 [ 486.327912] ? dquot_file_open+0x5b/0x90 [ 486.331942] ? jfs_open+0x61/0x2f0 [ 486.335452] ? security_file_open+0x82/0x190 [ 486.339830] ? file_ra_state_init+0xc4/0x1e0 [ 486.344210] ? do_dentry_open+0x698/0xec0 [ 486.348327] ? jfs_setattr+0x610/0x610 [ 486.352186] ? __inode_permission+0xcd/0x2f0 [ 486.356566] ? vfs_open+0x10d/0x220 [ 486.360168] path_openat+0x10ad/0x2970 [ 486.364030] ? path_lookupat+0x780/0x780 [ 486.368068] ? trace_hardirqs_on+0x10/0x10 [ 486.372276] ? trace_hardirqs_on+0x10/0x10 [ 486.376482] do_filp_open+0x179/0x3c0 [ 486.380255] ? may_open_dev+0xe0/0xe0 [ 486.384029] ? lock_downgrade+0x740/0x740 [ 486.388153] ? do_raw_spin_unlock+0x164/0x220 [ 486.392618] ? _raw_spin_unlock+0x29/0x40 [ 486.396736] ? __alloc_fd+0x1be/0x490 [ 486.400510] do_sys_open+0x296/0x410 [ 486.404196] ? filp_open+0x60/0x60 [ 486.407706] ? __close_fd+0x159/0x230 [ 486.411480] ? do_syscall_64+0x4c/0x640 [ 486.415424] ? SyS_open+0x30/0x30 [ 486.418850] do_syscall_64+0x1d5/0x640 [ 486.422710] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 486.427869] RIP: 0033:0x7f0a31fe6ee9 [ 486.431550] RSP: 002b:00007ffdb1031af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 486.439229] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f0a31fe6ee9 [ 486.446469] RDX: 0000000000000300 RSI: 000000002000c380 RDI: 00000000ffffff9c [ 486.453717] RBP: 00007f0a31fa6750 R08: 0000000000000000 R09: 0000000000000000 [ 486.460958] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000f8008000 [ 486.468197] R13: 0000000000000000 R14: 0000001200030083 R15: 0000000000000000 [ 486.475445] Code: 76 fa e8 a0 fe ff ff e8 62 34 4d fa 48 c7 c1 20 a9 b6 87 ba d1 02 00 00 48 c7 c6 c0 a1 b6 87 48 c7 c7 00 a2 b6 87 e8 c8 bd fa ff <0f> 0b e8 3c 34 4d fa e8 97 d7 76 fa e8 45 fe ff ff e8 2d 34 4d [ 486.494607] RIP: dbAlloc.cold+0x33/0x44 RSP: ffff888092b47650 [ 486.510539] ---[ end trace c9e19e369b2ebcf2 ]--- [ 486.515287] Kernel panic - not syncing: Fatal exception [ 486.520791] Kernel Offset: disabled [ 486.524396] Rebooting in 86400 seconds..