mt6893-security-research

MT6893 Security Research Five security research findings from...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007396)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007396 advisory. In the Linux kernel, the following vulnerability has been resolved: net: nsh: Use correct macoffset to unwind gso skb in nshgsosegment As the call trace shows,...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-006673)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006673 advisory. In the Linux kernel, the following vulnerability has been resolved: e100: Fix possible use after free in e100xmitprepare In e100xmitprepare, if we can't map the skb,...

SUSE 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

A flaw was found in the Linux kernel's mac80211 Wi-Fi subsystem. This vulnerability occurs because a specific error path within the ieee80211txprepareskb function fails to properly release a network buffer, known as a socket buffer skb. This inconsistency can lead to a double-free condition, wher...

UBUNTU-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...

Linux Distros Unpatched Vulnerability : CVE-2026-23414

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tls: Purge asynchold in tlsdecryptasyncwait The asynchold queue pins encrypted input skbs while the AEAD engine references their scatterlist data. Once...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the incorrect path not releasing the skb objects properly, potentially leading to memory leaks or...

kernel: can: j1939: j1939_session_new(): fix skb reference counting

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939sessionnew: fix skb reference counting Since j1939sessionskbqueue does an extra skbget for each new skb, do the same for the initial one in j1939sessionnew to avoid refcount underflow. mkl: clean up commit messag...

ALSA-2026:6037 Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: Use-After-Free vulnerability in ATM subsystem CVE-2025-38180 kernel: macvlan: fix error recovery in macvlancommonnewlink CVE-2026-23209 kernel: net/sched: clsu32: use...

PT-2026-35142

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the br nd send function where neighbour discovery options are parsed from ns-opt under the assumption that these options reside in the linear part of the request...

SUSE CVE-2026-23299

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: purge error queues in socket destructors When TX timestamping is enabled via SOTIMESTAMPING, SKBs may be queued into skerrorqueue and will stay there until consumed. If userspace never gets to read the timestamps, or i...

kernel: ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr()

In the Linux kernel, the following vulnerability has been resolved: ipv6: BUG in pskbexpandhead as part of calipsoskbuffsetattr There exists a kernel oops caused by a BUGONnhead INTMAX i.e. intskbheadroomskb + lendelta skbheadroomskb is meant to ensure that delta = headroom - skbheadroomskb is...

EUVD-2026-15305

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free skb on ncitransceive early error paths ncitransceive takes ownership of the skb passed by the caller, but the -EPROTO, -EINVAL, and -EBUSY error paths return without freeing it. Due to issues clearing NCIDATAEXCHAN...

EUVD-2026-15234

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: purge error queues in socket destructors When TX timestamping is enabled via SOTIMESTAMPING, SKBs may be queued into skerrorqueue and will stay there until consumed. If userspace never gets to read the timestamps, or i...

CVE-2026-23339

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free skb on ncitransceive early error paths ncitransceive takes ownership of the skb passed by the caller, but the -EPROTO, -EINVAL, and -EBUSY error paths return without freeing it. Due to issues clearing NCIDATAEXCHAN...

CVE-2026-23339

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free skb on ncitransceive early error paths ncitransceive takes ownership of the skb passed by the caller, but the -EPROTO, -EINVAL, and -EBUSY error paths return without freeing it. Due to issues clearing NCIDATAEXCHAN...

CVE-2026-23339

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free skb on ncitransceive early error paths ncitransceive takes ownership of the skb passed by the caller, but the -EPROTO, -EINVAL, and -EBUSY error paths return without freeing it. Due to issues clearing NCIDATAEXCHAN...