RSP: 002b:00007ffe97f81168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007ffe97f81180 RCX: 00007f67bdcebcf9
RDX: 0000000000000002 RSI: 0000000020000300 RDI: ffffffffffffff9c
RBP: 0000000000000002 R08: 00007ffe97f80f06 R09: 00000000000000a0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe97f8117c
R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
</TASK>
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 5078 Comm: syz-executor255 Not tainted 6.5.0-syzkaller-11812-g7733171926cc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:strchr+0x1b/0xb0 lib/string.c:329
Code: d6 ad f7 48 8b 74 24 08 48 8b 14 24 eb 89 90 f3 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 48 89 fa 55 48 c1 ea 03 53 48 83 ec 10 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 51 0f b6 07 89
RSP: 0018:ffffc900041a75f0 EFLAGS: 00010286
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000025 RDI: 0000000000000000
RBP: ffffc900041a7680 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: ffffffff8a3cfd58 R12: ffffc900041a7680
R13: 0000000000000cc0 R14: ffff888076cb7018 R15: 0000000000000001
FS: 0000555556cde380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000310 CR3: 0000000071d58000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
kvasprintf_const+0x25/0x190 lib/kasprintf.c:45
kobject_set_name_vargs+0x5a/0x130 lib/kobject.c:272
kobject_add_varg lib/kobject.c:366 [inline]
kobject_add+0x12a/0x240 lib/kobject.c:424
device_add+0x290/0x1ac0 drivers/base/core.c:3560
rfkill_register+0x1a9/0xb00 net/rfkill/core.c:1070
nfc_register_device+0x11f/0x3c0 net/nfc/core.c:1132
nci_register_device+0x7f4/0xb80 net/nfc/nci/core.c:1257
virtual_ncidev_open+0x147/0x220 drivers/nfc/virtual_ncidev.c:148
misc_open+0x3da/0x4c0 drivers/char/misc.c:165
chrdev_open+0x277/0x700 fs/char_dev.c:414
do_dentry_open+0x88b/0x1730 fs/open.c:929
do_open fs/namei.c:3639 [inline]
path_openat+0x19af/0x29c0 fs/namei.c:3796
do_filp_open+0x1de/0x430 fs/namei.c:3823
do_sys_openat2+0x176/0x1e0 fs/open.c:1422
do_sys_open fs/open.c:1437 [inline]
__do_sys_openat fs/open.c:1453 [inline]
__se_sys_openat fs/open.c:1448 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1448
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f67bdcebcf9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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:00007ffe97f81168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007ffe97f81180 RCX: 00007f67bdcebcf9
RDX: 0000000000000002 RSI: 0000000020000300 RDI: ffffffffffffff9c
RBP: 0000000000000002 R08: 00007ffe97f80f06 R09: 00000000000000a0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe97f8117c
R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:strchr+0x1b/0xb0 lib/string.c:329
Code: d6 ad f7 48 8b 74 24 08 48 8b 14 24 eb 89 90 f3 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 48 89 fa 55 48 c1 ea 03 53 48 83 ec 10 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 51 0f b6 07 89
RSP: 0018:ffffc900041a75f0 EFLAGS: 00010286
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000025 RDI: 0000000000000000
RBP: ffffc900041a7680 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: ffffffff8a3cfd58 R12: ffffc900041a7680
R13: 0000000000000cc0 R14: ffff888076cb7018 R15: 0000000000000001
FS: 0000555556cde380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000310 CR3: 0000000071d58000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
0: ad lods %ds:(%rsi),%eax
1: f7 48 8b 74 24 08 48 testl $0x48082474,-0x75(%rax)
8: 8b 14 24 mov (%rsp),%edx
b: eb 89 jmp 0xffffff96
d: 90 nop
e: f3 0f 1e fa endbr64
12: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
19: fc ff df
1c: 48 89 fa mov %rdi,%rdx
1f: 55 push %rbp
20: 48 c1 ea 03 shr $0x3,%rdx
24: 53 push %rbx
25: 48 83 ec 10 sub $0x10,%rsp
* 29: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax <-- trapping instruction
2d: 48 89 fa mov %rdi,%rdx
30: 83 e2 07 and $0x7,%edx
33: 38 d0 cmp %dl,%al
35: 7f 04 jg 0x3b
37: 84 c0 test %al,%al
39: 75 51 jne 0x8c
3b: 0f b6 07 movzbl (%rdi),%eax
3e: 89 .byte 0x89