Oops: general protection fault, probably for non-canonical address 0xdffffc000000000c: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067]
CPU: 1 UID: 0 PID: 6079 Comm: syz.2.23 Not tainted 6.15.0-syzkaller-02198-gb1456f6dc167 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:d_inode include/linux/dcache.h:527 [inline]
RIP: 0010:proc_fill_cache+0x10c/0x3d0 fs/proc/base.c:2142
Code: c0 44 89 6c 24 1c 0f 84 26 01 00 00 49 89 c4 e8 9a 1d 69 ff 49 be 00 00 00 00 00 fc ff df 49 8d 5c 24 68 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 b5 d7 c9 ff 4c 8b 2b 49 8d 7d 40
RSP: 0018:ffffc9000515fa60 EFLAGS: 00010207
RAX: 000000000000000c RBX: 0000000000000064 RCX: ffff888026a10000
RDX: 0000000000000000 RSI: ffffffff8d9324ba RDI: ffff888026a10000
RBP: ffffc9000515fba8 R08: ffff888078378233 R09: 1ffff1100f06f046
R10: dffffc0000000000 R11: ffffed100f06f047 R12: fffffffffffffffc
R13: 0000000000000019 R14: dffffc0000000000 R15: 1ffff92000a2bf54
FS: 00007fa49df6b6c0(0000) GS:ffff8881261c7000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000007b1b4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
proc_map_files_readdir+0x7bc/0xa00 fs/proc/base.c:2473
iterate_dir+0x5ac/0x770 fs/readdir.c:108
__do_sys_getdents fs/readdir.c:326 [inline]
__se_sys_getdents+0xe4/0x250 fs/readdir.c:312
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa49d18e969
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:00007fa49df6b038 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007fa49d3b6160 RCX: 00007fa49d18e969
RDX: 0000000000001016 RSI: 0000200000000f00 RDI: 0000000000000004
RBP: 00007fa49d210ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fa49d3b6160 R15: 00007ffcfc290c38
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:d_inode include/linux/dcache.h:527 [inline]
RIP: 0010:proc_fill_cache+0x10c/0x3d0 fs/proc/base.c:2142
Code: c0 44 89 6c 24 1c 0f 84 26 01 00 00 49 89 c4 e8 9a 1d 69 ff 49 be 00 00 00 00 00 fc ff df 49 8d 5c 24 68 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 b5 d7 c9 ff 4c 8b 2b 49 8d 7d 40
RSP: 0018:ffffc9000515fa60 EFLAGS: 00010207
RAX: 000000000000000c RBX: 0000000000000064 RCX: ffff888026a10000
RDX: 0000000000000000 RSI: ffffffff8d9324ba RDI: ffff888026a10000
RBP: ffffc9000515fba8 R08: ffff888078378233 R09: 1ffff1100f06f046
R10: dffffc0000000000 R11: ffffed100f06f047 R12: fffffffffffffffc
R13: 0000000000000019 R14: dffffc0000000000 R15: 1ffff92000a2bf54
FS: 00007fa49df6b6c0(0000) GS:ffff8881260c7000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 000000007b1b4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 44 89 6c 24 1c mov %r13d,0x1c(%rsp)
5: 0f 84 26 01 00 00 je 0x131
b: 49 89 c4 mov %rax,%r12
e: e8 9a 1d 69 ff call 0xff691dad
13: 49 be 00 00 00 00 00 movabs $0xdffffc0000000000,%r14
1a: fc ff df
1d: 49 8d 5c 24 68 lea 0x68(%r12),%rbx
22: 48 89 d8 mov %rbx,%rax
25: 48 c1 e8 03 shr $0x3,%rax
* 29: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1) <-- trapping instruction
2e: 74 08 je 0x38
30: 48 89 df mov %rbx,%rdi
33: e8 b5 d7 c9 ff call 0xffc9d7ed
38: 4c 8b 2b mov (%rbx),%r13
3b: 49 8d 7d 40 lea 0x40(%r13),%rdi