general protection fault, probably for non-canonical address 0xdffffc000000006c: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000360-0x0000000000000367]
CPU: 1 PID: 3639 Comm: syz-executor.2 Not tainted 6.0.0-rc2-syzkaller-00495-g53a406803ca5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
RIP: 0010:ax25_dev_ax25dev include/net/ax25.h:342 [inline]
RIP: 0010:ax25_send_frame+0xe4/0x640 net/ax25/ax25_out.c:56
Code: 00 48 85 c0 49 89 c4 0f 85 fb 03 00 00 e8 54 cd 2b f9 49 8d bd 60 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b1 04 00 00 4d 8b ad 60 03 00 00 4d 85 ed 0f 84
RSP: 0018:ffffc900001e0ab8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff888026c60008 RCX: 0000000000000100
RDX: 000000000000006c RSI: ffffffff88503b8c RDI: 0000000000000360
RBP: ffffffff9155d5e0 R08: 0000000000000001 R09: ffffffff908e0ab7
R10: 0000000000000001 R11: 1ffffffff200e7b8 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000104 R15: 0000000000000000
FS: 0000555555d61400(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4bc339d0b0 CR3: 000000004d22a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rose_send_frame+0xcc/0x2f0 net/rose/rose_link.c:106
rose_transmit_clear_request+0x1d5/0x290 net/rose/rose_link.c:255
rose_rx_call_request+0x4c0/0x1bc0 net/rose/af_rose.c:1009
rose_loopback_timer+0x19e/0x590 net/rose/rose_loopback.c:111
call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474
expire_timers kernel/time/timer.c:1519 [inline]
__run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790
__run_timers kernel/time/timer.c:1768 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803
__do_softirq+0x1d3/0x9c6 kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:find_stack lib/stackdepot.c:293 [inline]
RIP: 0010:__stack_depot_save+0x138/0x500 lib/stackdepot.c:435
Code: d9 23 0d 67 4f 26 0d 48 8d 0c c8 48 8b 29 48 85 ed 75 12 e9 92 00 00 00 48 8b 6d 00 48 85 ed 0f 84 85 00 00 00 39 5d 08 75 ee <44> 3b 7d 0c 75 e8 31 c0 48 8b 74 c5 18 49 39 34 c6 75 db 48 83 c0
RSP: 0018:ffffc900044df490 EFLAGS: 00000246
RAX: ffff88823b400000 RBX: 00000000f7f259b3 RCX: ffff88823b52cd98
RDX: 0000000000000010 RSI: 0000000000000002 RDI: 0000000056a8ea4f
RBP: ffff888026a1aad0 R08: 00000000469629b4 R09: 0000000000000000
R10: 0000000000000001 R11: 000000000008c07c R12: 0000000000000001
R13: 0000000000000800 R14: ffffc900044df500 R15: 0000000000000010
kasan_save_stack+0x2e/0x40 mm/kasan/common.c:39
kasan_set_track+0x21/0x30 mm/kasan/common.c:45
kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
____kasan_slab_free mm/kasan/common.c:367 [inline]
____kasan_slab_free+0x166/0x1c0 mm/kasan/common.c:329
kasan_slab_free include/linux/kasan.h:200 [inline]
slab_free_hook mm/slub.c:1754 [inline]
slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1780
slab_free mm/slub.c:3534 [inline]
kfree+0xe2/0x580 mm/slub.c:4562
tomoyo_check_open_permission+0x172/0x380 security/tomoyo/file.c:786
tomoyo_file_open security/tomoyo/tomoyo.c:320 [inline]
tomoyo_file_open+0x9d/0xc0 security/tomoyo/tomoyo.c:315
security_file_open+0x45/0xb0 security/security.c:1646
do_dentry_open+0x349/0x13a0 fs/open.c:865
do_open fs/namei.c:3557 [inline]
path_openat+0x1c92/0x28f0 fs/namei.c:3691
do_filp_open+0x1b6/0x400 fs/namei.c:3718
do_sys_openat2+0x16d/0x4c0 fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1338
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fdf01a3c194
Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44
RSP: 002b:00007ffde62c0be0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007ffde62c0ce0 RCX: 00007fdf01a3c194
RDX: 0000000000000002 RSI: 00007ffde62c0d20 RDI: 00000000ffffff9c
RBP: 00007ffde62c0d20 R08: 0000000000000000 R09: 00007ffde62c0af0
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 000000000031b2fc R14: 0000000000000002 R15: 00007ffde62c0d20
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ax25_dev_ax25dev include/net/ax25.h:342 [inline]
RIP: 0010:ax25_send_frame+0xe4/0x640 net/ax25/ax25_out.c:56
Code: 00 48 85 c0 49 89 c4 0f 85 fb 03 00 00 e8 54 cd 2b f9 49 8d bd 60 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b1 04 00 00 4d 8b ad 60 03 00 00 4d 85 ed 0f 84
RSP: 0018:ffffc900001e0ab8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff888026c60008 RCX: 0000000000000100
RDX: 000000000000006c RSI: ffffffff88503b8c RDI: 0000000000000360
RBP: ffffffff9155d5e0 R08: 0000000000000001 R09: ffffffff908e0ab7
R10: 0000000000000001 R11: 1ffffffff200e7b8 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000104 R15: 0000000000000000
FS: 0000555555d61400(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4bc339d0b0 CR3: 000000004d22a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 00 48 85 add %cl,-0x7b(%rax)
3: c0 49 89 c4 rorb $0xc4,-0x77(%rcx)
7: 0f 85 fb 03 00 00 jne 0x408
d: e8 54 cd 2b f9 callq 0xf92bcd66
12: 49 8d bd 60 03 00 00 lea 0x360(%r13),%rdi
19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
20: fc ff df
23: 48 89 fa mov %rdi,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction
2e: 0f 85 b1 04 00 00 jne 0x4e5
34: 4d 8b ad 60 03 00 00 mov 0x360(%r13),%r13
3b: 4d 85 ed test %r13,%r13
3e: 0f .byte 0xf
3f: 84 .byte 0x84