CVE-2026-89606

In the Linux kernel, the following vulnerability has been resolved: ecryptfs: reject too-small tag 70 packets ecryptfsparsetag70packet subtracts fixed metadata fields from the parsed packet body size to derive the encrypted filename size. A malformed packet with a body smaller than those fixed...

CVE-2026-89606 ecryptfs: reject too-small tag 70 packets

In the Linux kernel, the following vulnerability has been resolved: ecryptfs: reject too-small tag 70 packets ecryptfsparsetag70packet subtracts fixed metadata fields from the parsed packet body size to derive the encrypted filename size. A malformed packet with a body smaller than those fixed...

CVE-2026-89593 hugetlb: only adjust reservation during unmapping if mapcount is 0

In the Linux kernel, the following vulnerability has been resolved: hugetlb: only adjust reservation during unmapping if mapcount is 0 Since df7a6d1f6405, unmaphugepagerange can adjust reservations. In the case of folio mapped in both a parent and a child, if the parent unmaps the range first, th...

CVE-2026-89551

CVE-2026-89551 is a CRITICAL (CVSS 9.8) integer underflow in the Linux kernel's SUNRPC subsystem. The xdr_buf_trim() function subtracts consumed bytes from buf->len without clamping, so when called from gss_krb5_unwrap_v2() with a small wire-derived buf->len while page-scale iov_lens are pr...

EUVD-2026-76462

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: xdrbuftrim: clamp buf-len to avoid underflow xdrbuftrim trims len bytes from the tail of an xdrbuf by walking the tail, pages, and head iovecs. Each per-section step uses mint so it never removes more bytes than that...

CVE-2026-89551

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: xdrbuftrim: clamp buf-len to avoid underflow xdrbuftrim trims len bytes from the tail of an xdrbuf by walking the tail, pages, and head iovecs. Each per-section step uses mint so it never removes more bytes than that...

CVE-2026-89551 SUNRPC: xdr_buf_trim: clamp buf->len to avoid underflow

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: xdrbuftrim: clamp buf-len to avoid underflow xdrbuftrim trims len bytes from the tail of an xdrbuf by walking the tail, pages, and head iovecs. Each per-section step uses mint so it never removes more bytes than that...

CVE-2026-89542 SUNRPC: harden gss_krb5_unwrap_v2 against short tokens

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: harden gsskrb5unwrapv2 against short tokens gsskrb5unwrapv2 reads the EC and RRC header fields at ptr+4 and ptr+6 before validating that the token is at least GSSKRB5TOKHDRLEN 16 bytes long, and its rotateleft helper pass...

CVE-2026-89532

This is an integer underflow in the Linux kernel's svcrdma (NFS/RDMA server) component. When a parsed chunk has ch_segcount == 0, the pcl_for_each_segment macro computes an inclusive upper bound as &ch_segments[0 - 1], which wraps the u32 to 0xFFFFFFFF, causing the loop to walk unrelated memory a...

CVE-2026-89524 wifi: ath6kl: clamp assoc request/response lengths before subtracting IE offsets

In the Linux kernel, the following vulnerability has been resolved: wifi: ath6kl: clamp assoc request/response lengths before subtracting IE offsets ath6klcfg80211connectevent subtracts fixed IE offsets from assocreqlen -= 4 and assocresplen -= 6, both u8, with no lower bound. The aggregate check...

CVE-2026-89524

CVE-2026-89524 is an integer underflow in the Linux kernel's ath6kl Wi-Fi driver . In ath6kl_cfg80211_connect_event(), fixed IE offsets are subtracted from assoc_req_len (−4) and assoc_resp_len (−6), both of type u8, with no lower-bound check. When an association request or response is shorter th...

EUVD-2026-76430

In the Linux kernel, the following vulnerability has been resolved: wifi: ath6kl: clamp assoc request/response lengths before subtracting IE offsets ath6klcfg80211connectevent subtracts fixed IE offsets from assocreqlen -= 4 and assocresplen -= 6, both u8, with no lower bound. The aggregate check...

CVE-2026-89524

In the Linux kernel, the following vulnerability has been resolved: wifi: ath6kl: clamp assoc request/response lengths before subtracting IE offsets ath6klcfg80211connectevent subtracts fixed IE offsets from assocreqlen -= 4 and assocresplen -= 6, both u8, with no lower bound. The aggregate check...

CVE-2026-89524 wifi: ath6kl: clamp assoc request/response lengths before subtracting IE offsets

In the Linux kernel, the following vulnerability has been resolved: wifi: ath6kl: clamp assoc request/response lengths before subtracting IE offsets ath6klcfg80211connectevent subtracts fixed IE offsets from assocreqlen -= 4 and assocresplen -= 6, both u8, with no lower bound. The aggregate check...

CVE-2026-89476

CVE-2026-89476 affects the Linux kernel's SCTP (Stream Control Transmission Protocol) implementation. A cached RECONF chunk may contain multiple request parameters, so a duplicate response can re-process the same ADD_OUT request while another parameter is still outstanding, rolling back stream-&g...

EUVD-2026-76382

In the Linux kernel, the following vulnerability has been resolved: sctp: fix stream-outcnt underflow on duplicate RECONF responses A cached RECONF chunk may contain more than one request parameter. A duplicate response can therefore find and process the same ADDOUT request again while another...

CVE-2026-89476

In the Linux kernel, the following vulnerability has been resolved: sctp: fix stream-outcnt underflow on duplicate RECONF responses A cached RECONF chunk may contain more than one request parameter. A duplicate response can therefore find and process the same ADDOUT request again while another...

CVE-2026-89476 sctp: fix stream->outcnt underflow on duplicate RECONF responses

In the Linux kernel, the following vulnerability has been resolved: sctp: fix stream-outcnt underflow on duplicate RECONF responses A cached RECONF chunk may contain more than one request parameter. A duplicate response can therefore find and process the same ADDOUT request again while another...

EUVD-2026-76323

In the Linux kernel, the following vulnerability has been resolved: net: tun: bound receive headroom tungetuser uses tun-align both as skb headroom and when choosing how much packet data to keep linear. OVS can propagate an oversized headroom request from another port to TUN or TAP. When align is...

CVE-2026-81000 net: tun: bound receive headroom

In the Linux kernel, the following vulnerability has been resolved: net: tun: bound receive headroom tungetuser uses tun-align both as skb headroom and when choosing how much packet data to keep linear. OVS can propagate an oversized headroom request from another port to TUN or TAP. When align is...