CVE-2026-68198wifi: ath6kl: fix use-after-free in aggr_reset_state()
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
In the Linux kernel, the following vulnerability has been resolved: wifi: ath6kl: fix use-after-free in aggr_reset_state() The aggr_reset_state() function uses timer_delete() (non-synchronous) for the aggregation timer before proceeding to delete TID state and before the structure is freed by callers like aggr_module_destroy(). If the timer callback (aggr_timeout) is executing when aggr_reset_state() is called, the callback will continue to access aggr_conn fields like rx_tid[] and stat[] which may be freed immediately after by kfree(aggr_info->aggr_conn) in aggr_module_destroy(). Additionally, the timer callback can re-arm itself via mod_timer() while aggr_reset_state() is running, creating a more complex race condition. Use timer_delete_sync() instead to ensure any running timer callback has completed before returning.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from bdcd81707973cf8aa9305337166f8ee842a050d4 before a1bac650b2d6b1baab1f3e78e2e007a6e2948dde; from bdcd81707973cf8aa9305337166f8ee842a050d4 before 2132a6db05846dd2318857d00e0c1291f9e41b29; from bdcd81707973cf8aa9305337166f8ee842a050d4 before 17ff29cd8dbc977c97788a5f7c011ec807b58242; from bdcd81707973cf8aa9305337166f8ee842a050d4 before 64af6534a085f49d6ed33338a19ab9cf0d0523c9; from bdcd81707973cf8aa9305337166f8ee842a050d4 before b5d618fd61b9069b4c0a6b487022dd3117ad5acc; from bdcd81707973cf8aa9305337166f8ee842a050d4 before 18965470d41e69d3fc10eb62afae29d10f4cdfd1; from bdcd81707973cf8aa9305337166f8ee842a050d4 before a3313111b5d9046af60b370c93eec105b27380c1; from bdcd81707973cf8aa9305337166f8ee842a050d4 before ba7debb4dd6427386862220e8335a53a4bfc235d | CNA record |
References
- https://git.kernel.org/stable/c/a1bac650b2d6b1baab1f3e78e2e007a6e2948dde
- https://git.kernel.org/stable/c/2132a6db05846dd2318857d00e0c1291f9e41b29
- https://git.kernel.org/stable/c/17ff29cd8dbc977c97788a5f7c011ec807b58242
- https://git.kernel.org/stable/c/64af6534a085f49d6ed33338a19ab9cf0d0523c9
- https://git.kernel.org/stable/c/b5d618fd61b9069b4c0a6b487022dd3117ad5acc
- https://git.kernel.org/stable/c/18965470d41e69d3fc10eb62afae29d10f4cdfd1
- https://git.kernel.org/stable/c/a3313111b5d9046af60b370c93eec105b27380c1
- https://git.kernel.org/stable/c/ba7debb4dd6427386862220e8335a53a4bfc235d
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.