Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.17' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 36.633305] erofs: read_super, device -> /dev/loop0 [ 36.638571] erofs: options -> [ 36.643091] erofs: root inode @ nid 36 [ 36.647390] erofs: mounted on /dev/loop0 with opts: . [ 36.654332] ------------[ cut here ]------------ [ 36.659117] kernel BUG at drivers/staging/erofs/xattr.c:186! [ 36.665374] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 36.670756] CPU: 0 PID: 8114 Comm: syz-executor724 Not tainted 4.19.188-syzkaller #0 [ 36.678669] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.688057] RIP: 0010:inline_xattr_iter_begin+0x3c4/0x4a0 [ 36.693585] Code: 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 56 96 28 fb 44 89 ee 89 ef 41 bc c3 ff ff ff e8 36 97 28 fb 44 39 ed 73 cf e8 3c 96 28 fb <0f> 0b e8 35 96 28 fb 41 89 ec eb be e8 db 56 5e fb e9 b9 fc ff ff [ 36.712473] RSP: 0018:ffff888095a2fc88 EFLAGS: 00010293 [ 36.717817] RAX: ffff8880b52bc1c0 RBX: ffff88808dbd24c0 RCX: ffffffff8639c77a [ 36.725089] RDX: 0000000000000000 RSI: ffffffff8639c784 RDI: 0000000000000004 [ 36.732347] RBP: 0000000000000048 R08: 0000000000000001 R09: 0000000000000048 [ 36.739663] R10: 0000000000000004 R11: 0000000000000000 R12: 00000000ffffffc3 [ 36.746934] R13: 0000000000000280 R14: ffff88808dbd24aa R15: ffff8880b4d23ac0 [ 36.754193] FS: 0000000001858300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 36.762401] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.768279] CR2: 0000000020000080 CR3: 00000000ab507000 CR4: 00000000001406f0 [ 36.775547] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.782803] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.790068] Call Trace: [ 36.792655] erofs_listxattr+0x147/0xf10 [ 36.796724] ? filename_lookup+0x3d5/0x5a0 [ 36.800948] ? filename_parentat+0x590/0x590 [ 36.805342] ? erofs_xattr_generic_get+0x1e0/0x1e0 [ 36.810263] ? __phys_addr_symbol+0x2c/0x70 [ 36.814566] ? __check_object_size+0x17b/0x3e0 [ 36.819131] ? erofs_xattr_generic_get+0x1e0/0x1e0 [ 36.824041] vfs_listxattr+0x105/0x190 [ 36.827915] listxattr+0xd3/0x140 [ 36.831358] path_listxattr+0xae/0x140 [ 36.835227] ? __se_sys_flistxattr+0x160/0x160 [ 36.839805] ? trace_hardirqs_off_caller+0x6e/0x210 [ 36.844804] ? do_syscall_64+0x21/0x620 [ 36.848760] do_syscall_64+0xf9/0x620 [ 36.852542] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.857734] RIP: 0033:0x443c59 [ 36.860925] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 [ 36.879902] RSP: 002b:00007ffd502c0938 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2 [ 36.887614] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 0000000000443c59 [ 36.894916] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200000c0 [ 36.902175] RBP: 00000000004034f0 R08: 0000000000000000 R09: 0000000000000000 [ 36.909472] R10: 00007ffd502c0800 R11: 0000000000000246 R12: 0000000000403580 [ 36.916723] R13: 0000000000000000 R14: 00000000004b1018 R15: 00000000004004a0 [ 36.923978] Modules linked in: [ 36.928252] ---[ end trace 9d043916b26d1059 ]--- [ 36.933029] RIP: 0010:inline_xattr_iter_begin+0x3c4/0x4a0 [ 36.938672] Code: 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 56 96 28 fb 44 89 ee 89 ef 41 bc c3 ff ff ff e8 36 97 28 fb 44 39 ed 73 cf e8 3c 96 28 fb <0f> 0b e8 35 96 28 fb 41 89 ec eb be e8 db 56 5e fb e9 b9 fc ff ff [ 36.957653] RSP: 0018:ffff888095a2fc88 EFLAGS: 00010293 [ 36.963075] RAX: ffff8880b52bc1c0 RBX: ffff88808dbd24c0 RCX: ffffffff8639c77a [ 36.970395] RDX: 0000000000000000 RSI: ffffffff8639c784 RDI: 0000000000000004 [ 36.977678] RBP: 0000000000000048 R08: 0000000000000001 R09: 0000000000000048 [ 36.985006] R10: 0000000000000004 R11: 0000000000000000 R12: 00000000ffffffc3 [ 36.992347] R13: 0000000000000280 R14: ffff88808dbd24aa R15: ffff8880b4d23ac0 [ 36.999723] FS: 0000000001858300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 37.008026] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.013943] CR2: 0000000020000080 CR3: 00000000ab507000 CR4: 00000000001406f0 [ 37.021252] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.028608] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.035880] Kernel panic - not syncing: Fatal exception [ 37.041812] Kernel Offset: disabled [ 37.045430] Rebooting in 86400 seconds..