EUVD-2026-55558

In the Linux kernel, the following vulnerability has been resolved: arm64: make hugeptepget handled unaligned addresses hugeptepget can be handed a virtual address pointing to the middle of a contpmd/contpte mapped hugetlb folio examples of callers are pagemaphugetlbrange, pagemappedinvma. The...

CVE-2026-68172 arm64: make huge_ptep_get handled unaligned addresses

In the Linux kernel, the following vulnerability has been resolved: arm64: make hugeptepget handled unaligned addresses hugeptepget can be handed a virtual address pointing to the middle of a contpmd/contpte mapped hugetlb folio examples of callers are pagemaphugetlbrange, pagemappedinvma. The...

CVE-2026-68169

The CVE-2026-68169 entry documents a race in Linux kernel mptcp_pm_userspace_get_local_id() where an address entry is looked up under a spinlock but its id is read after the lock is released, allowing a concurrent delete to free the entry and cause a use-after-free. Concrete details show the issu...

CVE-2026-68169 mptcp: pm: userspace: fix use-after-free in get_local_id

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: userspace: fix use-after-free in getlocalid In mptcppmuserspacegetlocalid, the address entry is looked up under spinlock, but its id is read after dropping the lock. A concurrent deletion can free the entry between the...

EUVD-2026-55555

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: userspace: fix use-after-free in getlocalid In mptcppmuserspacegetlocalid, the address entry is looked up under spinlock, but its id is read after dropping the lock. A concurrent deletion can free the entry between the...

CVE-2026-68168 afs: Fix afs_edit_dir_remove() to get, not find, block 0

In the Linux kernel, the following vulnerability has been resolved: afs: Fix afseditdirremove to get, not find, block 0 Fix afseditdirremove to use afsdirgetblock to get block 0 rather than afsdirfindblock as the latter caches the found block in the afsdiriter and may switch out the page it's on ...

EUVD-2026-55554

In the Linux kernel, the following vulnerability has been resolved: afs: Fix afseditdirremove to get, not find, block 0 Fix afseditdirremove to use afsdirgetblock to get block 0 rather than afsdirfindblock as the latter caches the found block in the afsdiriter and may switch out the page it's on ...

CVE-2026-68168

The CVE describes a Linux kernel AFS fix: afs_edit_dir_remove() now uses afs_dir_get_block() to obtain block 0 instead of afs_dir_find_block(), because the latter caches the found block in afs_dir_iter and can switch the page if a subsequent find occurs. This change aligns with the existing afs_e...

CVE-2026-68149 fs: preserve ACL_DONT_CACHE state in forget_cached_acl()

In the Linux kernel, the following vulnerability has been resolved: fs: preserve ACLDONTCACHE state in forgetcachedacl The ACLDONTCACHE state is meant to be a constant state for the inode for filesystems that want to opt out of posix acl caching. Commit facd61053cff1 "fuse: fixes after adapting t...

EUVD-2026-55527

In the Linux kernel, the following vulnerability has been resolved: phonet: pep: fix use-after-free in pepgetsb pepgetsb doesn't consider that pskbmaypull might have relocated the skb data, and continue to access the older pointer, causing UAF. Reproduced under KASAN: BUG: KASAN:...

CVE-2026-68144

The CVE-2026-68144 issue is in the Linux kernel Phonet subsystem (pep_get_sb). The root cause is use-after-free caused when pep_get_sb() doesn’t account for skb data relocation by pskb_may_pull(), leading to a stale pointer dereference. Reproductions via KASAN show slab-use-after-free in pep_get_...

CVE-2026-68138 net/sched: serialize qdisc_rtab_list against concurrent get/put

In the Linux kernel, the following vulnerability has been resolved: net/sched: serialize qdiscrtablist against concurrent get/put qdiscgetrtab and qdiscputrtab mutate the process-global singly linked list qdiscrtablist and a plain non-atomic 'int refcnt' with no lock. This was only safe because...

CVE-2026-68138

The CVE-2026-68138 issue concerns a race in the Linux kernel networking scheduler (net/sched) where qdisc_rtab_list and a non-atomic refcnt are mutated without proper locking. The historical RTNL mutex was supposed to serialize rate-table lookups, inserts, and frees, but CLS_FLOWER/TCF_PROTO_OPS_...

Astra Linux – Vulnerability in cups

OpenPrinting CUPS is an open-source printing system for Linux and other Unix-like operating systems. Prior to version 2.4.17, a network-attached attacker could send a crafted SNMP response to the CUPS SNMP backend, causing an out-of-bounds read of up to 176 bytes beyond the stack buffer. The leak...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: bpf: Fixed the stackmap overflow check in bpfgetstackid Syzkaller reported a KASAN vulnerability related to out-of-bounds write operations in bpfgetstackid, when copying stack trace data. The issue occurs when the perf trace...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: HID: i2c-hid: fixed a potential buffer overflow in i2chidgetreport i2chidxfer is used to read recvlen + sizeofle16 bytes of data into ihid-rawbuf. The former can originate from the user space of the hidraw driver and is bounded b...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: exfat: Fixed a reference count leak in exfatfind. Fixed reference count leaks related to exfatgetdentryset that could occur in exfatfind. The function exfatgetdentryset will increment the reference counter of es-bh upon succes...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: tls: Use skdstget and dstdevrcu in getnetdevforsock. getnetdevforsock is called during setsockopt, so it isn’t under RCU. Using skdstgetsk-dev could trigger a Use-After-Forgiving UAF condition. Let’s use skdstget and dstdevrcu...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ethtool: Avoid overflowing the user-space buffer during stats queries The ethtool -S command operates through three ioctl calls: - ETHTOOLGSSETINFO for the size of the statistics data; - ETHTOOLGSTRINGS for the names of the...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: powerpc/eeh: Fixed the recursive pcilockrescanremove locking mechanism in EEH event handling. The recent commit 1010b4c012b0 “powerpc/eeh: Making the EEH driver’s device hotplug safe” restructured the EEH driver to improve...