BUG: unable to handle page fault for address: ffffe6303ef94fc2
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 10003a067 P4D 10003a067 PUD 0
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 8724 Comm: syz.5.39944 Tainted: G W syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__bpf_prog_run_save_cb include/linux/filter.h:718 [inline]
RIP: 0010:bpf_prog_run_save_cb include/linux/filter.h:732 [inline]
RIP: 0010:sk_filter_trim_cap+0x67c/0x6f0 net/core/filter.c:152
Code: c5 c0 66 bf 85 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 c3 86 f9 fd 48 8b 44 24 20 49 03 06 49 89 c6 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 f7 e8 a5 86 f9 fd 49 ff 06 e8 0d 9f 82
RSP: 0018:ffffc90000ba7820 EFLAGS: 00010a02
RAX: 1fffea303ef94fc2 RBX: ffff888112486dc0 RCX: ffff88811c35cf00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000008
RBP: ffffc90000ba78d0 R08: ffffffff86e78048 R09: ffffffff86e78058
R10: ffffffff86e7805c R11: ffffffff86e78043 R12: 1ffff92000030200
R13: dffffc0000000000 R14: ffff5181f7ca7e10 R15: 000000006c11b03c
FS: 00007ff3accc66c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffe6303ef94fc2 CR3: 00000001236bf000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000200000000300
DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
sk_filter include/linux/filter.h:862 [inline]
unix_dgram_sendmsg+0xb1d/0x17e0 net/unix/af_unix.c:1756
sock_sendmsg_nosec net/socket.c:652 [inline]
__sock_sendmsg net/socket.c:664 [inline]
____sys_sendmsg+0x5b7/0x8f0 net/socket.c:2376
___sys_sendmsg+0x236/0x2e0 net/socket.c:2430
__sys_sendmsg net/socket.c:2459 [inline]
__do_sys_sendmsg net/socket.c:2468 [inline]
__se_sys_sendmsg net/socket.c:2466 [inline]
__x64_sys_sendmsg+0x1f9/0x2c0 net/socket.c:2466
do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff3ae269cb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff3accc6028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007ff3ae4e4fa0 RCX: 00007ff3ae269cb9
RDX: 0000000000000000 RSI: 0000200000000140 RDI: 0000000000000007
RBP: 00007ff3ae2d7bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff3ae4e5038 R14: 00007ff3ae4e4fa0 R15: 00007fff9a8c4ce8
Modules linked in:
CR2: ffffe6303ef94fc2
---[ end trace 212a4ab558ef81c8 ]---
RIP: 0010:__bpf_prog_run_save_cb include/linux/filter.h:718 [inline]
RIP: 0010:bpf_prog_run_save_cb include/linux/filter.h:732 [inline]
RIP: 0010:sk_filter_trim_cap+0x67c/0x6f0 net/core/filter.c:152
Code: c5 c0 66 bf 85 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 c3 86 f9 fd 48 8b 44 24 20 49 03 06 49 89 c6 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 f7 e8 a5 86 f9 fd 49 ff 06 e8 0d 9f 82
RSP: 0018:ffffc90000ba7820 EFLAGS: 00010a02
RAX: 1fffea303ef94fc2 RBX: ffff888112486dc0 RCX: ffff88811c35cf00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000008
RBP: ffffc90000ba78d0 R08: ffffffff86e78048 R09: ffffffff86e78058
R10: ffffffff86e7805c R11: ffffffff86e78043 R12: 1ffff92000030200
R13: dffffc0000000000 R14: ffff5181f7ca7e10 R15: 000000006c11b03c
FS: 00007ff3accc66c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffe6303ef94fc2 CR3: 00000001236bf000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000200000000300
DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess), 1 bytes skipped:
0: c0 66 bf 85 shlb $0x85,-0x41(%rsi)
4: 4c 89 f0 mov %r14,%rax
7: 48 c1 e8 03 shr $0x3,%rax
b: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1)
10: 74 08 je 0x1a
12: 4c 89 f7 mov %r14,%rdi
15: e8 c3 86 f9 fd call 0xfdf986dd
1a: 48 8b 44 24 20 mov 0x20(%rsp),%rax
1f: 49 03 06 add (%r14),%rax
22: 49 89 c6 mov %rax,%r14
25: 48 c1 e8 03 shr $0x3,%rax
* 29: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction
2e: 74 08 je 0x38
30: 4c 89 f7 mov %r14,%rdi
33: e8 a5 86 f9 fd call 0xfdf986dd
38: 49 ff 06 incq (%r14)
3b: e8 .byte 0xe8
3c: 0d .byte 0xd
3d: 9f lahf
3e: 82 .byte 0x82