Bug 216260
| Summary: | ubifs: Potential AA deadlock in ubifs setxattr for encrypted file | ||
|---|---|---|---|
| Product: | File System | Reporter: | Zhihao Cheng (chengzhihao1) |
| Component: | Other | Assignee: | fs_other |
| Status: | NEW --- | ||
| Severity: | normal | ||
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 5.19.0-rc7 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: | setup.sh | ||
Created attachment 301455 [details] setup.sh CONFIG_FS_ENCRYPTION=y CONFIG_DETECT_HUNG_TASK=y $ ./setup.sh 1 e [ 102.620871] INFO: task setfattr:1599 blocked for more than 10 seconds. [ 102.625298] Not tainted 5.19.0-rc7-00001-gb666b6823ce0-dirty #711 [ 102.627189] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 102.628732] task:setfattr state:D stack: 0 pid: 1599 ppid: 1556 flags:0x00000000 [ 102.628749] Call Trace: [ 102.628753] <TASK> [ 102.628776] __schedule+0x482/0x1060 [ 102.629964] schedule+0x92/0x1a0 [ 102.629976] rwsem_down_read_slowpath+0x287/0x8c0 [ 102.629986] ? _printk+0x5f/0x7d [ 102.629996] down_read+0x84/0x170 [ 102.630585] ubifs_xattr_get+0xd1/0x370 [ubifs] [ 102.630730] ubifs_crypt_get_context+0x1f/0x30 [ubifs] [ 102.630791] fscrypt_get_encryption_info+0x7d/0x1c0 [ 102.630802] ? security_inode_alloc+0x5b/0x120 [ 102.630810] fscrypt_policy_to_inherit+0x56/0xc0 [ 102.630817] fscrypt_prepare_new_inode+0x35/0x160 [ 102.630822] ? current_time+0x53/0xb0 [ 102.630830] ubifs_new_inode+0xcc/0x4b0 [ubifs] [ 102.630873] ubifs_xattr_set+0x591/0x9f0 [ubifs] [ 102.630915] ? ubifs_tnc_read_node+0x6b/0x2b0 [ubifs] [ 102.630961] xattr_set+0x8c/0x3e0 [ubifs] [ 102.631003] __vfs_setxattr+0x71/0xc0 [ 102.631011] __vfs_setxattr_noperm+0x8d/0x330 [ 102.631019] __vfs_setxattr_locked+0x187/0x1d0 [ 102.631026] vfs_setxattr+0x105/0x270 [ 102.631034] do_setxattr+0x6d/0x110 [ 102.631041] setxattr+0xa0/0xd0 [ 102.631049] ? getname_flags+0x6d/0x330 [ 102.631056] ? putname+0x75/0xa0 [ 102.631060] ? kmem_cache_free+0x1a7/0x690 [ 102.631066] ? preempt_count_add+0x83/0x130 [ 102.631074] ? __mnt_want_write+0xbd/0x120 [ 102.631079] path_setxattr+0x118/0x150 [ 102.631087] __x64_sys_setxattr+0x2f/0x40 [ 102.631093] do_syscall_64+0x35/0x80 [ 102.631100] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 102.631113] RIP: 0033:0x7f57a4d0b4e9 [ 102.631120] RSP: 002b:00007ffd8bb57b18 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc [ 102.631128] RAX: ffffffffffffffda RBX: 00007ffd8bb5947a RCX: 00007f57a4d0b4e9 [ 102.631132] RDX: 000055b288004000 RSI: 00007ffd8bb5946a RDI: 00007ffd8bb5947a [ 102.631135] RBP: 00007ffd8bb5946a R08: 0000000000000000 R09: 0000000000000000 [ 102.631138] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000006 [ 102.631141] R13: 00007ffd8bb57c60 R14: 0000000000000000 R15: 0000000000000000