BUG: stack guard page was hit in sys_open

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syzbot

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Mar 18, 2022, 2:13:31 AM3/18/22
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Hello,

syzbot found the following issue on:

HEAD commit: 9e96a3d6ae39 Merge 56cf5326bdf9 ("arm64: entry: Add macro ..
git tree: android12-5.10-lts
console output: https://syzkaller.appspot.com/x/log.txt?x=118815f3700000
kernel config: https://syzkaller.appspot.com/x/.config?x=74a3a3b391ca1e24
dashboard link: https://syzkaller.appspot.com/bug?extid=fd8d07eff0018cd96b84
compiler: Debian clang version 11.0.1-2, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17ccbd29700000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=136aa59d700000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+fd8d07...@syzkaller.appspotmail.com

BUG: stack guard page was hit at ffffc90000bdfff8 (stack is ffffc90000be0000..ffffc90000be7fff)
kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 365 Comm: syz-executor150 Not tainted 5.10.104-syzkaller-00407-g9e96a3d6ae39 #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> f4 17 06 00 83 bd 70 ff ff ff 00 74 36 48 8d 9d 70 ff ff ff 0f
RSP: 0018:ffffc90000be0000 EFLAGS: 00010246
RAX: ffff88811d198000 RBX: 1ffff9200017c01e RCX: ffffc90000be0090
RDX: 0000000000000000 RSI: ffff88811d198000 RDI: ffffc90000be0000
RBP: ffffc90000be0090 R08: dffffc0000000000 R09: ffffc90000be00e0
R10: fffff5200017c01f R11: 0000000000000000 R12: ffff88811d198000
R13: ffffffff815bede0 R14: ffffc90000be00e0 R15: 0000000000000000
FS: 0000555557205300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90000bdfff8 CR3: 000000011909a000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
stack_trace_save+0x11b/0x1e0 kernel/stacktrace.c:121
save_stack+0x96/0x1e0 mm/page_owner.c:146
__set_page_owner+0x3b/0x300 mm/page_owner.c:219
set_page_owner include/linux/page_owner.h:35 [inline]
post_alloc_hook mm/page_alloc.c:2385 [inline]
prep_new_page mm/page_alloc.c:2391 [inline]
get_page_from_freelist+0xa74/0xa90 mm/page_alloc.c:4063
__alloc_pages_nodemask+0x3c8/0x820 mm/page_alloc.c:5107
alloc_slab_page mm/slub.c:1813 [inline]
allocate_slab+0x6b/0x350 mm/slub.c:1815
new_slab mm/slub.c:1876 [inline]
new_slab_objects mm/slub.c:2635 [inline]
___slab_alloc+0x143/0x2f0 mm/slub.c:2798
__slab_alloc mm/slub.c:2838 [inline]
slab_alloc_node mm/slub.c:2920 [inline]
slab_alloc mm/slub.c:2962 [inline]
kmem_cache_alloc+0x26f/0x380 mm/slub.c:2967
__d_alloc+0x2d/0x6b0 fs/dcache.c:1709
d_alloc fs/dcache.c:1788 [inline]
d_alloc_parallel+0xf3/0x1360 fs/dcache.c:2540
__lookup_slow+0x14e/0x400 fs/namei.c:1613
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:212
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
lookup_open fs/namei.c:3162 [inline]
open_last_lookups fs/namei.c:3253 [inline]
path_openat+0x11c0/0x3500 fs/namei.c:3441
do_filp_open+0x200/0x440 fs/namei.c:3471
do_sys_openat2+0x13b/0x470 fs/open.c:1211
do_sys_open fs/open.c:1227 [inline]
__do_sys_open fs/open.c:1235 [inline]
__se_sys_open fs/open.c:1231 [inline]
__x64_sys_open+0x221/0x270 fs/open.c:1231
do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f9a92e53bd9
Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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
RSP: 002b:00007ffef10d9f58 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9a92e53bd9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200003c0
RBP: 00007f9a92e17d80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9a92e17e10
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 43890336bb67230d ]---
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> f4 17 06 00 83 bd 70 ff ff ff 00 74 36 48 8d 9d 70 ff ff ff 0f
RSP: 0018:ffffc90000be0000 EFLAGS: 00010246
RAX: ffff88811d198000 RBX: 1ffff9200017c01e RCX: ffffc90000be0090
RDX: 0000000000000000 RSI: ffff88811d198000 RDI: ffffc90000be0000
RBP: ffffc90000be0090 R08: dffffc0000000000 R09: ffffc90000be00e0
R10: fffff5200017c01f R11: 0000000000000000 R12: ffff88811d198000
R13: ffffffff815bede0 R14: ffffc90000be00e0 R15: 0000000000000000
FS: 0000555557205300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90000bdfff8 CR3: 000000011909a000 CR4: 00000000003506b0
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 f4 17 06 00 callq 0x61823 <-- 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


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Tadeusz Struk

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Mar 18, 2022, 11:53:08 AM3/18/22
to syzbot, syzkaller-a...@googlegroups.com
#syz dup: BUG: stack guard page was hit in file_open

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Thanks,
Tadeusz
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