Linux Distros Unpatched Vulnerability : CVE-2026-90143

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: kcm: Hold RCU read lock while running BPF parser kcmparsefuncstrparser calls bpfprogrunpinoncpu which prevents CPU migration, but does not establish an RCU...

AZL-102017 CVE-2026-90143 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: net: kcm: Hold RCU read lock while running BPF parser kcmparsefuncstrparser calls bpfprogrunpinoncpu which prevents CPU migration, but does not establish an RCU read-side critical section. Consequently, BPF map operations can...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: - BPF: The rcureadlockTraceheld function in bpfmaplookuppercpuelem needs to be checked. The bpfmaplookuppercpuelem helper function is also available for sleepable BPF programs. When BPF JIT is disabled or on a 32-bit host,...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: RCU: Protect access to rcuprinttaskexpstall - exptasks For kernels built with CONFIGPREEMPTRCU=y, the following scenario can result in a NULL pointer dereferencing: c CPU1 CPU2 rcupreemptdeferredqsirqrestore rcuprinttaskexpstall ...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: ipv6: prevented UAF in ip6sendskb syzbot reported a UAF in ip6sendskb 1 After ip6localout has returned, we no longer can safely dereference rt, unless we hold rcureadlock. A similar issue was fixed in the commit a688caa34beb...

UBUNTU-CVE-2026-89670

In the Linux kernel, the following vulnerability has been resolved: nfsd: hold rcu across localio cmpxchg retry nfsdfile objects are freed via callrcu filecache.c:296, and nfsdfileslab is created without SLABTYPESAFEBYRCU KMEMCACHEnfsdfile, 0 at filecache.c:789, so the slab page backing a freed...

CVE-2026-89670 nfsd: hold rcu across localio cmpxchg retry

In the Linux kernel, the following vulnerability has been resolved: nfsd: hold rcu across localio cmpxchg retry nfsdfile objects are freed via callrcu filecache.c:296, and nfsdfileslab is created without SLABTYPESAFEBYRCU KMEMCACHEnfsdfile, 0 at filecache.c:789, so the slab page backing a freed...

kernel: security/keys: fix missed RCU read section on lookup

A flaw was found in the Linux kernel's keyring code. The assocarrayfind function, used for looking up keys, was called without holding the necessary Read-Copy-Update RCU read lock. This oversight allows for a memory corruption vulnerability, particularly affecting persistent key handling, as the...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098993)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098993 advisory. In the Linux kernel, the following vulnerability has been resolved: smc: Use skdstget and dstdevrcu in in smcclcprfxset. smcclcprfxset is called during connect and n...

EUVD-2026-64348

In the Linux kernel, the following vulnerability has been resolved: mac802154: fix netdev use-after-free in beacon worker mac802154beaconworker reads local-beaconreq under RCU and derives the sub-interface from the request, but then drops the RCU read lock and continues to use both sdata and the...

CVE-2026-74563

A flaw was found in the Linux kernel's Reliable Datagram Sockets RDS TCP module. The rdstcpladdrcheck function fails to hold the Read-Copy-Update RCU lock across an IPv6 address check. This allows a race condition where a network device can be freed while still being referenced, leading to a...

AZL-96222 CVE-2026-74563 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: rds: tcp: hold the RCU lock across ipv6chkaddr in rdstcpladdrcheck rdstcpladdrcheck looks up a scoped IPv6 interface with devgetbyindexrcu, drops the RCU read-side lock, and only then passes the bare struct netdevice into...

CVE-2026-74563

In the Linux kernel, the following vulnerability has been resolved: rds: tcp: hold the RCU lock across ipv6chkaddr in rdstcpladdrcheck rdstcpladdrcheck looks up a scoped IPv6 interface with devgetbyindexrcu, drops the RCU read-side lock, and only then passes the bare struct netdevice into...

UBUNTU-CVE-2026-74563

In the Linux kernel, the following vulnerability has been resolved: rds: tcp: hold the RCU lock across ipv6chkaddr in rdstcpladdrcheck rdstcpladdrcheck looks up a scoped IPv6 interface with devgetbyindexrcu, drops the RCU read-side lock, and only then passes the bare struct netdevice into...

CVE-2026-74563

In the Linux kernel, the following vulnerability has been resolved: rds: tcp: hold the RCU lock across ipv6chkaddr in rdstcpladdrcheck rdstcpladdrcheck looks up a scoped IPv6 interface with devgetbyindexrcu, drops the RCU read-side lock, and only then passes the bare struct netdevice into...

CVE-2026-74563

In the Linux kernel, the following vulnerability has been resolved: rds: tcp: hold the RCU lock across ipv6chkaddr in rdstcpladdrcheck rdstcpladdrcheck looks up a scoped IPv6 interface with devgetbyindexrcu, drops the RCU read-side lock, and only then passes the bare struct netdevice into...

CVE-2026-74563 rds: tcp: hold the RCU lock across ipv6_chk_addr() in rds_tcp_laddr_check()

In the Linux kernel, the following vulnerability has been resolved: rds: tcp: hold the RCU lock across ipv6chkaddr in rdstcpladdrcheck rdstcpladdrcheck looks up a scoped IPv6 interface with devgetbyindexrcu, drops the RCU read-side lock, and only then passes the bare struct netdevice into...

EUVD-2026-59284

In the Linux kernel, the following vulnerability has been resolved: tracing/fprobe: Fix NULL pointer dereference in fprobefgraphentry fprobefgraphentry sizes a shadow-stack reservation in one walk of the per-ip fprobe list and fills it in a second walk, both under rcureadlock only. A fprobe...

Linux Distros Unpatched Vulnerability : CVE-2026-74563

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - rds: tcp: hold the RCU lock across ipv6chkaddr in rdstcpladdrcheck rdstcpladdrcheck looks up a scoped IPv6 interface with devgetbyindexrcu, drops the RCU...

PT-2026-72774

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject sleepable BPF LSM CGROUP programs at load time The cgroup shim runs under rcu read lock dont migrate, so we should not attach any sleepable BPF programs there. Add support to the verifier to explicitly reject attempts...