general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 28834 Comm: syz-executor.4 Not tainted 6.2.0-syzkaller-02299-g4a7d37e824f5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
RIP: 0010:path_init+0xac/0x1930 fs/namei.c:2351
Code: da 48 c1 ea 03 80 3c 02 00 0f 85 89 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 0b 48 89 ca 48 89 4d c8 83 e1 07 48 c1 ea 03 <0f> b6 04 02 38 c8 7f 08 84 c0 0f 85 0a 14 00 00 48 8b 45 c8 31 ff
RSP: 0018:ffffc90004e5f5b8 EFLAGS: 00010256
RAX: dffffc0000000000 RBX: ffff88803561a200 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81e4c93b RDI: ffffc90004e5f868
RBP: ffffc90004e5f650 R08: 0000000000000005 R09: 0000000000200000
R10: 0000000000000040 R11: 0000000000000000 R12: ffffc90004e5f7a0
R13: ffffc90004e5f958 R14: 0000000000000000 R15: ffffc90004e5f7a0
FS: 000055555613c400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ddbca45088 CR3: 0000000044d6e000 CR4: 0000000000350ee0
Call Trace:
<TASK>
path_openat+0x182/0x2750 fs/namei.c:3710
do_filp_open+0x1ba/0x410 fs/namei.c:3742
file_open_name+0x2ac/0x420 fs/open.c:1257
filp_open+0x4b/0x80 fs/open.c:1277
do_coredump+0x10cf/0x3c40 fs/coredump.c:703
get_signal+0x1bff/0x24e0 kernel/signal.c:2845
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309
asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0x7f48720b0e23
Code: ff 7f 0f 84 27 da ff ff 49 8b 84 24 a0 00 00 00 48 85 c0 0f 85 76 02 00 00 89 de 4c 89 e7 44 89 9d 00 fb ff ff 4c 89 8d 08 fb <ff> ff 4c 89 95 10 fb ff ff 48 89 95 20 fb ff ff e8 78 1c 00 00 48
RSP: 002b:00007ffdb3316c80 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 00007f48721abfbf RCX: 00007f48720b0e21
RDX: 00007ffdb3316cc0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f48721ad980 R08: 0000000000000000 R09: 00007ffdb33cc080
R10: 0000000000000000 R11: 0000000000000293 R12: 00000000002349de
R13: 00007ffdb3316dd0 R14: 00007f48721ac1f0 R15: 0000000000000fd2
</TASK>
Modules linked in:
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 48 c1 ea 03 shr $0x3,%rdx
4: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
8: 0f 85 89 15 00 00 jne 0x1597
e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
15: fc ff df
18: 48 8b 0b mov (%rbx),%rcx
1b: 48 89 ca mov %rcx,%rdx
1e: 48 89 4d c8 mov %rcx,-0x38(%rbp)
22: 83 e1 07 and $0x7,%ecx
25: 48 c1 ea 03 shr $0x3,%rdx
* 29: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax <-- trapping instruction
2d: 38 c8 cmp %cl,%al
2f: 7f 08 jg 0x39
31: 84 c0 test %al,%al
33: 0f 85 0a 14 00 00 jne 0x1443
39: 48 8b 45 c8 mov -0x38(%rbp),%rax
3d: 31 ff xor %edi,%edi