Description
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix out-of-bounds access for twsk in tcp_ao_established_key().
lockdep_sock_is_held() was added in tcp_ao_established_key() by the cited commit.
It can be called from tcp_v[46]_timewait_ack() with twsk.
Since it does not have sk->sk_lock, the lockdep annotation results in out-of-bound access.
$ pahole -C tcp_timewait_sock vmlinux | grep size /* size: 288, cachelines: 5, members: 8 */ $ pahole -C sock vmlinux | grep sk_lock socket_lock_t sk_lock; /* 440 192 */
Let's not use lockdep_sock_is_held() for TCP_TIME_WAIT.
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 051f49d5176613dea88ecf73a101c3a99f4720e9, < 87bb3e719042f0030a6dad39118c6a6b2a491ad9; >= 6b2d11e2d8fc130df4708be0b6b53fd3e6b54cf6, < 510db031ba6eb40134f84c90ef963ea4b6dfb878; >= 6b2d11e2d8fc130df4708be0b6b53fd3e6b54cf6, < 29cf64d128c94cf98d1c69d8b2962d39db5ff4c6; >= 6b2d11e2d8fc130df4708be0b6b53fd3e6b54cf6, < 03cb001ef87b3f8d859cf7f96329acf3d6235d29; >= 6.12.5, < 6.12.92 |
| Linux | Linux | 6.13 |
References
Timeline
- Published
- Jul 25, 2026
- Last modified
- Nov 3, 2026
- NVD status
- Undergoing Analysis