CVE-2026-98325 is a vulnerability in Linux Kernel
Published on October 6, 2026
wifi: mac80211: set up the TX info early to fix failure paths
In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: set up the TX info early to fix failure paths
The previous commit 2c51457d930f ("wifi: mac80211: free ack status
frame on TX header build failure") cleaned up the leak, but still
left the code a bit messy and the failed SKB didn't get reported
to userspace.
Fix this up by initialising skb->cb[] earlier, which allows using
ieee80211_free_txskb() and therefore reports it for the failure
in ieee80211_build_hdr(), and unifies the ieee80211_skb_resize()
failure path with it.
Products Associated with CVE-2026-98325
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Affected Versions
Linux:- Version c3e7724b6bc2f25e46c38dbe68f09d71fafeafb8 and below df711e9fa20d7e996711c7f43a11a71805bef78d is affected.
- Version c3e7724b6bc2f25e46c38dbe68f09d71fafeafb8 and below 420fcc2fdeae6ecd682d2b1605a0a54c88aed4aa is affected.
- Version c3e7724b6bc2f25e46c38dbe68f09d71fafeafb8 and below 36e6f0a5e6d7238f4023e77f423c1c1414374309 is affected.
- Version c3e7724b6bc2f25e46c38dbe68f09d71fafeafb8 and below 0fb37d2b6cb829cebdaea80f39011469f474bdcc is affected.
- Version c3e7724b6bc2f25e46c38dbe68f09d71fafeafb8 and below 03d67414bd05b86029afc14535238a9393eac1c6 is affected.
- Version c3e7724b6bc2f25e46c38dbe68f09d71fafeafb8 and below 50d3d79dc0743b616afb00d01a626c76758721f7 is affected.
- Version fd39be7ff6f81f2dc91ba6e5f87944abef5b4802 is affected.
- Version 3.6.3 and below 3.7 is affected.
- Version 3.7 is affected.
- Before 3.7 is unaffected.
- Version 6.1.189, <= 6.1.* is unaffected.
- Version 6.6.158, <= 6.6.* is unaffected.
- Version 6.12.112, <= 6.12.* is unaffected.
- Version 6.18.54, <= 6.18.* is unaffected.
- Version 7.2.8, <= 7.2.* is unaffected.
- Version 7.3-rc4, <= * is unaffected.