netlink: 8 bytes leftover after parsing attributes in process `syz.5.1137'.
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 10474 Comm: syz.5.1137 Not tainted 6.13.0-rc3-syzkaller-00062-gc061cf420ded #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:PagePoisoned include/linux/page-flags.h:293 [inline]
RIP: 0010:page_to_nid include/linux/mm.h:1647 [inline]
RIP: 0010:show_numa_info mm/vmalloc.c:4936 [inline]
RIP: 0010:vmalloc_info_show+0x511/0xc40 mm/vmalloc.c:5018
Code: 00 00 48 8b 53 20 44 89 e0 48 8d 2c c2 48 89 ea 48 c1 ea 03 42 80 3c 32 00 0f 85 ae 05 00 00 48 8b 6d 00 48 89 ea 48 c1 ea 03 <42> 80 3c 32 00 0f 85 8b 05 00 00 4c 8b 7d 00 48 c7 c7 ff ff ff ff
RSP: 0018:ffffc9000c027bc8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888026764a00 RCX: ffffc9000ecd9000
RDX: 0000000000000000 RSI: ffffffff81ea753b RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000000
FS: 00007fb0c94816c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f60bff8 CR3: 000000003c59e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
seq_read_iter+0x4f4/0x12b0 fs/seq_file.c:230
proc_reg_read_iter+0x21d/0x310 fs/proc/inode.c:299
new_sync_read fs/read_write.c:484 [inline]
vfs_read+0x87f/0xbe0 fs/read_write.c:565
ksys_read+0x12b/0x250 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb0c8585d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb0c9481038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fb0c8775fa0 RCX: 00007fb0c8585d29
RDX: 0000000000000053 RSI: 0000000020001fc0 RDI: 0000000000000002
RBP: 00007fb0c8601a20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb0c8775fa0 R15: 00007fff259d6d98
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:PagePoisoned include/linux/page-flags.h:293 [inline]
RIP: 0010:page_to_nid include/linux/mm.h:1647 [inline]
RIP: 0010:show_numa_info mm/vmalloc.c:4936 [inline]
RIP: 0010:vmalloc_info_show+0x511/0xc40 mm/vmalloc.c:5018
Code: 00 00 48 8b 53 20 44 89 e0 48 8d 2c c2 48 89 ea 48 c1 ea 03 42 80 3c 32 00 0f 85 ae 05 00 00 48 8b 6d 00 48 89 ea 48 c1 ea 03 <42> 80 3c 32 00 0f 85 8b 05 00 00 4c 8b 7d 00 48 c7 c7 ff ff ff ff
RSP: 0018:ffffc9000c027bc8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888026764a00 RCX: ffffc9000ecd9000
RDX: 0000000000000000 RSI: ffffffff81ea753b RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000000
FS: 00007fb0c94816c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f60bff8 CR3: 000000003c59e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 48 8b 53 20 mov 0x20(%rbx),%rdx
6: 44 89 e0 mov %r12d,%eax
9: 48 8d 2c c2 lea (%rdx,%rax,8),%rbp
d: 48 89 ea mov %rbp,%rdx
10: 48 c1 ea 03 shr $0x3,%rdx
14: 42 80 3c 32 00 cmpb $0x0,(%rdx,%r14,1)
19: 0f 85 ae 05 00 00 jne 0x5cd
1f: 48 8b 6d 00 mov 0x0(%rbp),%rbp
23: 48 89 ea mov %rbp,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 42 80 3c 32 00 cmpb $0x0,(%rdx,%r14,1) <-- trapping instruction
2f: 0f 85 8b 05 00 00 jne 0x5c0
35: 4c 8b 7d 00 mov 0x0(%rbp),%r15
39: 48 c7 c7 ff ff ff ff mov $0xffffffffffffffff,%rdi