CVE-2026-23444

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: always free skb on ieee80211txprepareskb failure ieee80211txprepareskb has three error paths, but only two of them free the skb. The first error path ieee80211txprepare returning TXDROP does not free it, while...

CVE-2026-23444

CVE-2026-23444 has been addressed in the Linux kernel by fixing skb ownership handling in wifi/mac80211. The patch adds kfree_skb() in the ieee80211_tx_prepare_skb() failure path to ensure all error paths free the skb, and removes redundant frees in callers (ath9k, mt76, mac80211_hwsim). The func...

PT-2026-30139

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel's mac80211 component related to the handling of skb socket buffer memory allocation within the ieee80211 tx prepare skb function. Specifically, the...

PT-2026-30177

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel's mac80211 component, specifically within the ieee80211 chan bw change function. This function iterates through stations and accesses link-reserved.oper...

wifi: mac80211: fix NULL deref in mesh_matches_local()

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CVE-2026-23396

A flaw was found in the Linux kernel's mac80211 component. An adjacent attacker can exploit this by sending a specially crafted Channel Switch Announcement CSA action frame. This frame, containing a valid Mesh ID Information Element IE but lacking a Mesh Configuration IE, can trigger a NULL point...

SUSE CVE-2026-23396

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix NULL deref in meshmatcheslocal meshmatcheslocal unconditionally dereferences ie-meshconfig to compare mesh configuration parameters. When called from meshrxcsaframe, the parsed action-frame elements may not...

CVE-2026-23396

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix NULL deref in meshmatcheslocal meshmatcheslocal unconditionally dereferences ie-meshconfig to compare mesh configuration parameters. When called from meshrxcsaframe, the parsed action-frame elements may not...

UBUNTU-CVE-2026-23396

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix NULL deref in meshmatcheslocal meshmatcheslocal unconditionally dereferences ie-meshconfig to compare mesh configuration parameters. When called from meshrxcsaframe, the parsed action-frame elements may not...

CVE-2026-23396

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix NULL deref in meshmatcheslocal meshmatcheslocal unconditionally dereferences ie-meshconfig to compare mesh configuration parameters. When called from meshrxcsaframe, the parsed action-frame elements may not...

CVE-2026-23396

The CVE-2026-23396 issue affects the Linux kernel mac80211 mesh code. The function mesh_matches_local() dereferenced ie->mesh_config without verifying presence, allowing a crafted CSA action frame that includes a Mesh ID IE but omits the Mesh Configuration IE to crash the kernel. The race is t...

wifi: mac80211: fix NULL pointer dereference in mesh_rx_csa_frame()

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CVE-2026-23279

A flaw was found in the Linux kernel's mac80211 component. A remote mesh peer with an established peer link can trigger a kernel NULL pointer dereference by sending a specially crafted Wi-Fi Wireless Fidelity management frame. This frame, a SPECTRUMMGMT/CHLSWITCH action frame, omits a required...

SUSE CVE-2026-23279

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix NULL pointer dereference in meshrxcsaframe In meshrxcsaframe, elems-meshchanswparamsie is dereferenced at lines 1638 and 1642 without a prior NULL check: ifmsh-chswttl = elems-meshchanswparamsie-meshttl;...

CVE-2026-23373

A flaw was found in the Linux kernel's wifi: rsi module. The rsimac80211config function's failure to default to a zero value can trigger a WARNON in the ieee80211hwconfinit function. This unexpected driver behavior may lead to system instability or other unforeseen operational issues...

USN-8098-8 linux-azure-fips vulnerabilities

Qualys discovered that several vulnerabilities existed in the AppArmor Linux kernel Security Module LSM. An unprivileged local attacker could use these issues to load, replace, and remove arbitrary AppArmor profiles causing denial of service, exposure of sensitive information kernel memory, local...

USN-8098-8: Linux kernel (Azure FIPS) vulnerabilities

Qualys discovered that several vulnerabilities existed in the AppArmor Linux kernel Security Module LSM. An unprivileged local attacker could use these issues to load, replace, and remove arbitrary AppArmor profiles causing denial of service, exposure of sensitive information kernel memory, local...

USN-8098-7 linux-azure vulnerabilities

Qualys discovered that several vulnerabilities existed in the AppArmor Linux kernel Security Module LSM. An unprivileged local attacker could use these issues to load, replace, and remove arbitrary AppArmor profiles causing denial of service, exposure of sensitive information kernel memory, local...

EUVD-2026-15362

In the Linux kernel, the following vulnerability has been resolved: wifi: rsi: Don't default to -EOPNOTSUPP in rsimac80211config This triggers a WARNON in ieee80211hwconfinit and isn't the expected behavior from the driver - other drivers default to 0 too...

CVE-2026-23373

In the Linux kernel, the following vulnerability has been resolved: wifi: rsi: Don't default to -EOPNOTSUPP in rsimac80211config This triggers a WARNON in ieee80211hwconfinit and isn't the expected behavior from the driver - other drivers default to 0 too...