general protection fault, probably for non-canonical address 0xffff000000000800: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0xfff8200000004000-0xfff8200000004007]
CPU: 0 PID: 273 Comm: kworker/u4:2 Not tainted 6.0.0-rc1-syzkaller-00028-g4dce3b375179 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
RIP: 0010:freelist_dereference mm/slub.c:347 [inline]
RIP: 0010:get_freepointer mm/slub.c:354 [inline]
RIP: 0010:get_freepointer_safe mm/slub.c:368 [inline]
RIP: 0010:slab_alloc_node mm/slub.c:3211 [inline]
RIP: 0010:slab_alloc mm/slub.c:3251 [inline]
RIP: 0010:__kmem_cache_alloc_lru mm/slub.c:3258 [inline]
RIP: 0010:kmem_cache_alloc+0x15d/0x4a0 mm/slub.c:3268
Code: 51 08 48 8b 01 48 83 79 10 00 48 89 04 24 0f 84 7c 02 00 00 48 85 c0 0f 84 73 02 00 00 49 8b 3c 24 41 8b 4c 24 28 40 f6 c7 0f <48> 8b 1c 08 0f 85 7b 02 00 00 48 8d 4a 08 65 48 0f c7 0f 0f 94 c0
RSP: 0000:ffffc9000185fe50 EFLAGS: 00010246
RAX: ffff000000000000 RBX: 000000000000000e RCX: 0000000000000800
RDX: 0000000000000420 RSI: 0000000000000cc0 RDI: 000000000003e6c0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff88810016e500
R13: 0000000000000cc0 R14: ffffffff8183a35e R15: 0000000000000cc0
FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88823ffff000 CR3: 0000000007825000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
getname_kernel+0x4e/0x370 fs/namei.c:227
kernel_execve+0x7a/0x500 fs/exec.c:1970
call_usermodehelper_exec_async+0x2e3/0x580 kernel/umh.c:112
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:freelist_dereference mm/slub.c:347 [inline]
RIP: 0010:get_freepointer mm/slub.c:354 [inline]
RIP: 0010:get_freepointer_safe mm/slub.c:368 [inline]
RIP: 0010:slab_alloc_node mm/slub.c:3211 [inline]
RIP: 0010:slab_alloc mm/slub.c:3251 [inline]
RIP: 0010:__kmem_cache_alloc_lru mm/slub.c:3258 [inline]
RIP: 0010:kmem_cache_alloc+0x15d/0x4a0 mm/slub.c:3268
Code: 51 08 48 8b 01 48 83 79 10 00 48 89 04 24 0f 84 7c 02 00 00 48 85 c0 0f 84 73 02 00 00 49 8b 3c 24 41 8b 4c 24 28 40 f6 c7 0f <48> 8b 1c 08 0f 85 7b 02 00 00 48 8d 4a 08 65 48 0f c7 0f 0f 94 c0
RSP: 0000:ffffc9000185fe50 EFLAGS: 00010246
RAX: ffff000000000000 RBX: 000000000000000e RCX: 0000000000000800
RDX: 0000000000000420 RSI: 0000000000000cc0 RDI: 000000000003e6c0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff88810016e500
R13: 0000000000000cc0 R14: ffffffff8183a35e R15: 0000000000000cc0
FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88823ffff000 CR3: 0000000007825000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 51 push %rcx
1: 08 48 8b or %cl,-0x75(%rax)
4: 01 48 83 add %ecx,-0x7d(%rax)
7: 79 10 jns 0x19
9: 00 48 89 add %cl,-0x77(%rax)
c: 04 24 add $0x24,%al
e: 0f 84 7c 02 00 00 je 0x290
14: 48 85 c0 test %rax,%rax
17: 0f 84 73 02 00 00 je 0x290
1d: 49 8b 3c 24 mov (%r12),%rdi
21: 41 8b 4c 24 28 mov 0x28(%r12),%ecx
26: 40 f6 c7 0f test $0xf,%dil
* 2a: 48 8b 1c 08 mov (%rax,%rcx,1),%rbx <-- trapping instruction
2e: 0f 85 7b 02 00 00 jne 0x2af
34: 48 8d 4a 08 lea 0x8(%rdx),%rcx
38: 65 48 0f c7 0f cmpxchg16b %gs:(%rdi)
3d: 0f 94 c0 sete %al