CVE-2026-53235

Summary of technical details (CVE-2026-53235) : The Linux kernel GRO receive path had a bug in skb_gro_receive_list() where skb_pull(skb, skb_gro_offset(skb)) could run without ensuring the data is linear (missing pskb_may_pull() guard). When packets arrive via napi_gro_frags(), skb_headlen can b...

CVE-2026-53228 ipv6: sit: reload inner IPv6 header after GSO offloads

In the Linux kernel, the following vulnerability has been resolved: ipv6: sit: reload inner IPv6 header after GSO offloads ipip6tunnelxmit caches the inner IPv6 header pointer at function entry and continues using it after iptunnelhandleoffloads. For GSO skbs, iptunnelhandleoffloads calls...

EUVD-2026-39312

In the Linux kernel, the following vulnerability has been resolved: ip6vti: fix incorrect tunnel matching in vti6tnllookup In vti6tnllookup, when an exact match for a tunnel fails, the code falls back to searching for wildcard tunnels: - Tunnels matching the packet's local address, with any remot...

CVE-2026-53211

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftmetabridge: fix stale stack leak via IIFHWADDR register NFTMETABRIIIFHWADDR declares its destination register with len = ETHALEN 6 bytes, which the register-init tracking rounds up to two 32-bit registers 8 bytes...

CVE-2026-53200

The CVE refers to the Linux kernel KVM on ARM64 where the XN bit handling was broken when FEAT_XNX is not enabled. Specifically, a FIELD_PREP() mask used to clear XN[0] manipulated the wrong bit, unconditionally granting execute permissions. The issue is resolved by correcting the bit manipulatio...

CVE-2026-53200 KVM: arm64: nv: Fix handling of XN[0] when !FEAT_XNX

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Fix handling of XN0 when !FEATXNX XN has already been extracted from its bitfield position so using FIELDPREP on the mask that clears XN0 is completely broken, having the effect of unconditionally granting execute...

CVE-2026-53198

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of a deferred filelock on double SMB2CANCEL A deferred byte-range lock an SMB2LOCK that blocks registers an async work on conn-asyncrequests via setupasyncwork, with cancelfn = smb2removeblockedlock and...

EUVD-2026-39265

In the Linux kernel, the following vulnerability has been resolved: ovl: keep err zero after successful ovlcacheget ovliteratemerged stores PTRERRcache in err before checking ISERRcache. On success err holds the truncated cache pointer and can be returned as a bogus non-zero error. The syzbot...

CVE-2026-53174 ovl: keep err zero after successful ovl_cache_get()

In the Linux kernel, the following vulnerability has been resolved: ovl: keep err zero after successful ovlcacheget ovliteratemerged stores PTRERRcache in err before checking ISERRcache. On success err holds the truncated cache pointer and can be returned as a bogus non-zero error. The syzbot...

CVE-2026-53174 ovl: keep err zero after successful ovl_cache_get()

In the Linux kernel, the following vulnerability has been resolved: ovl: keep err zero after successful ovlcacheget ovliteratemerged stores PTRERRcache in err before checking ISERRcache. On success err holds the truncated cache pointer and can be returned as a bogus non-zero error. The syzbot...

CVE-2026-53164

In the Linux kernel, the following vulnerability has been resolved: iommu/dma: Do not try to iommumap a 0 length region in swiotlb iommudmaiovalinkswiotlb processes a mapping that is unaligned in three parts, the head, middle and trailer. If the middle is empty because there are no aligned pages ...

CVE-2026-53153

CVE-2026-53153 affects the Linux kernel memcg list_lru path. A race during memcg_reparent_list_lrus() clears the dying memcg’s xarray entry before reparenting per-node lists, letting concurrent list_lru_del/walk operate on the parent and corrupt next/prev pointers. The fix reverses the order: rep...

CVE-2026-53135

The CVE-2026-53135 issue affects the Linux kernel’s DRM AMD display path, specifically SDP debugfs writes. Root cause: dp_sdp_message_debugfs_write() dereferenced connector->base.state->crtc without NULL checks, potentially crashing when a connected-but-unbound connector exists (e.g., after...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.12.92 bug fix and security update

Red Hat OpenShift Container Platform release 4.12.92 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.12. Red Hat Product Security has rated this update as having a...

Important: Red Hat Security Advisory: runc security update

An update for runc is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.13.68 bug fix and security update

Red Hat OpenShift Container Platform release 4.13.68 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.13. Red Hat Product Security has rated this update as having a...

CVE-2026-12245

NSD from version 4.13.0 has a heap use-after-free bug in logging errors on TLS connections, causing a crash of the server process, which can be triggered trivially by sending a DNS query over a DoT connection, and closing the connection without reading the response...

CVE-2026-12245 Denial of DNS over TLS service by any DoT client

NSD from version 4.13.0 has a heap use-after-free bug in logging errors on TLS connections, causing a crash of the server process, which can be triggered trivially by sending a DNS query over a DoT connection, and closing the connection without reading the response...

CVE-2026-57589

sys/kern/sysvsem.c in OpenBSD through 7.9 has a use-after-free allowing local privilege escalation to root. This is a context switch use-after-free after tsleep in syssemget...

PT-2026-52270

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ovl iterate merged function where the err variable is assigned the value of PTR ERRcache before verifying if cache is an error using IS ERRcache. When the operatio...