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BUG: stack guard page was hit in sys_mount (8)

Status: closed as dup on 2022/04/19 18:35
Reported-by: syzbot+d78f7c4d3546645c537b@syzkaller.appspotmail.com
First crash: 950d, last: 950d
Cause bisection: failed (error log, bisect log)
  
▶ ▼ Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
BUG: stack guard page was hit in file_open C error 25 995d 1073d
▶ ▼ Similar bugs (12)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-5-10 BUG: stack guard page was hit in sys_mount (7) C error 3 952d 954d 0/2 closed as dup on 2022/04/18 14:30
android-5-10 BUG: stack guard page was hit in sys_mount (2) C error 2 968d 969d 0/2 closed as dup on 2022/04/01 14:43
android-5-10 BUG: stack guard page was hit in sys_mount (6) C error 1 954d 954d 0/2 closed as dup on 2022/04/15 20:39
android-5-10 BUG: stack guard page was hit in sys_mount C error 4 972d 973d 0/2 closed as dup on 2022/03/29 16:35
android-5-10 BUG: stack guard page was hit in sys_mount (3) C error 1 962d 962d 0/2 closed as dup on 2022/04/08 14:40
android-5-10 BUG: stack guard page was hit in sys_mount (13) C error 1 927d 927d 0/2 closed as dup on 2022/05/12 14:30
android-5-10 BUG: stack guard page was hit in sys_mount (5) C error 2 955d 955d 0/2 closed as dup on 2022/04/14 18:04
android-5-10 BUG: stack guard page was hit in sys_mount (11) C error 1 928d 928d 0/2 closed as dup on 2022/05/11 16:52
android-5-10 BUG: stack guard page was hit in sys_mount (9) C error 11 938d 949d 0/2 closed as dup on 2022/05/04 16:15
android-5-10 BUG: stack guard page was hit in sys_mount (4) C error 6 959d 960d 0/2 closed as dup on 2022/04/11 14:20
android-5-10 BUG: stack guard page was hit in sys_mount (12) C error 1 928d 928d 0/2 closed as dup on 2022/05/11 21:59
android-5-10 BUG: stack guard page was hit in sys_mount (10) C error 3 929d 930d 0/2 closed as dup on 2022/05/11 00:32

Sample crash report:
BUG: stack guard page was hit at ffffc90000c1fff8 (stack is ffffc90000c20000..ffffc90000c27fff)
kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 380 Comm: syz-executor569 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:unwind_start arch/x86/include/asm/unwind.h:60 [inline]
RIP: 0010:arch_stack_walk+0xd7/0x140 arch/x86/kernel/stacktrace.c:24
Code: eb 1b 65 48 8b 04 25 80 6d 02 00 4c 39 e0 74 0a 49 8b 8c 24 98 0e 00 00 eb 03 48 89 e9 48 8d bd 70 ff ff ff 4c 89 e6 4c 89 fa <e8> 94 27 06 00 83 bd 70 ff ff ff 00 74 36 48 8d 9d 70 ff ff ff 0f
RSP: 0018:ffffc90000c20000 EFLAGS: 00010246
RAX: ffff8881065dbb40 RBX: 1ffff9200018401e RCX: ffffc90000c20090
RDX: 0000000000000000 RSI: ffff8881065dbb40 RDI: ffffc90000c20000
RBP: ffffc90000c20090 R08: dffffc0000000000 R09: ffffc90000c20190
R10: 0000000000000002 R11: 0000000000000000 R12: ffff8881065dbb40
R13: ffffffff815b5630 R14: ffffc90000c200e0 R15: 0000000000000000
FS:  00007f8e9d088700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90000c1fff8 CR3: 00000001179e6000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 stack_trace_save+0x12d/0x1f0 kernel/stacktrace.c:121
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:428 [inline]
 __kasan_slab_alloc+0xb2/0xe0 mm/kasan/common.c:461
 kasan_slab_alloc include/linux/kasan.h:259 [inline]
 slab_post_alloc_hook mm/slab.h:583 [inline]
 slab_alloc_node mm/slub.c:2956 [inline]
 slab_alloc mm/slub.c:2964 [inline]
 kmem_cache_alloc+0x16c/0x300 mm/slub.c:2969
 __d_alloc+0x2d/0x6b0 fs/dcache.c:1709
 d_alloc fs/dcache.c:1788 [inline]
 d_alloc_parallel+0xe6/0x1330 fs/dcache.c:2540
 __lookup_slow+0x14e/0x400 fs/namei.c:1613
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_slow+0x5a/0x80 fs/namei.c:1645
 walk_component+0x425/0x5a0 fs/namei.c:1940
 lookup_last fs/namei.c:2389 [inline]
 path_lookupat+0x18d/0x460 fs/namei.c:2413
 filename_lookup+0x23f/0x6c0 fs/namei.c:2446
 user_path_at_empty+0x40/0x50 fs/namei.c:2726
 user_path_at include/linux/namei.h:59 [inline]
 do_mount fs/namespace.c:3239 [inline]
 __do_sys_mount fs/namespace.c:3450 [inline]
 __se_sys_mount+0x293/0x3c0 fs/namespace.c:3427
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3427
 do_syscall_64+0x34/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f8e9d0db369
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8e9d088208 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007f8e9d0db369
RDX: 0000000020000300 RSI: 0000000020000000 RDI: 0000000020000340
RBP: 00007f8e9d15f3e0 R08: 0000000000000000 R09: 00007f8e9d15f3e8
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8e9d15f3ec
R13: 00007ffc45d9b66f R14: 00007f8e9d088300 R15: 0000000000022000
Modules linked in:
---[ end trace 185ec6f6b1365a9c ]---
RIP: 0010:unwind_start arch/x86/include/asm/unwind.h:60 [inline]
RIP: 0010:arch_stack_walk+0xd7/0x140 arch/x86/kernel/stacktrace.c:24
Code: eb 1b 65 48 8b 04 25 80 6d 02 00 4c 39 e0 74 0a 49 8b 8c 24 98 0e 00 00 eb 03 48 89 e9 48 8d bd 70 ff ff ff 4c 89 e6 4c 89 fa <e8> 94 27 06 00 83 bd 70 ff ff ff 00 74 36 48 8d 9d 70 ff ff ff 0f
RSP: 0018:ffffc90000c20000 EFLAGS: 00010246
RAX: ffff8881065dbb40 RBX: 1ffff9200018401e RCX: ffffc90000c20090
RDX: 0000000000000000 RSI: ffff8881065dbb40 RDI: ffffc90000c20000
RBP: ffffc90000c20090 R08: dffffc0000000000 R09: ffffc90000c20190
R10: 0000000000000002 R11: 0000000000000000 R12: ffff8881065dbb40
R13: ffffffff815b5630 R14: ffffc90000c200e0 R15: 0000000000000000
FS:  00007f8e9d088700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90000c1fff8 CR3: 00000001179e6000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	eb 1b                	jmp    0x1d
   2:	65 48 8b 04 25 80 6d 	mov    %gs:0x26d80,%rax
   9:	02 00
   b:	4c 39 e0             	cmp    %r12,%rax
   e:	74 0a                	je     0x1a
  10:	49 8b 8c 24 98 0e 00 	mov    0xe98(%r12),%rcx
  17:	00
  18:	eb 03                	jmp    0x1d
  1a:	48 89 e9             	mov    %rbp,%rcx
  1d:	48 8d bd 70 ff ff ff 	lea    -0x90(%rbp),%rdi
  24:	4c 89 e6             	mov    %r12,%rsi
  27:	4c 89 fa             	mov    %r15,%rdx
* 2a:	e8 94 27 06 00       	callq  0x627c3 <-- trapping instruction
  2f:	83 bd 70 ff ff ff 00 	cmpl   $0x0,-0x90(%rbp)
  36:	74 36                	je     0x6e
  38:	48 8d 9d 70 ff ff ff 	lea    -0x90(%rbp),%rbx
  3f:	0f                   	.byte 0xf

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/04/19 17:46 android12-5.10-lts 414e6c8e941c 33fc6ed6 .config console log report syz C ci2-android-5-10 BUG: stack guard page was hit in sys_mount
2022/04/19 17:30 android12-5.10-lts 414e6c8e941c 33fc6ed6 .config console log report info ci2-android-5-10 BUG: stack guard page was hit in sys_mount
* Struck through repros no longer work on HEAD.