USN-8725-2: Linux kernel (AWS) vulnerabilities
Ubuntu updates the AWS Linux kernel in USN-8725-2, fixing eight CVEs including issues in NFS, OCFS2, Netfilter, SCTP, and B.A.T.M.A.N. subsystems.
Ubuntu released USN-8725-2, a security update for the Linux kernel on the AWS variant. The update fixes eight CVEs: CVE-2022-50401, CVE-2026-43071, CVE-2026-52914, CVE-2026-53002, CVE-2026-53043, CVE-2026-53045, CVE-2026-53224, and CVE-2026-53309. Affected subsystems include the NVIDIA Tegra memory controller driver, NFS server daemon, OCFS2 file system, B.A.T.M.A.N. meshing protocol, Netfilter, and SCTP protocol.
- USN-8725-2 updates the Linux kernel on Ubuntu's AWS variant.
- Fixes eight CVEs including CVE-2022-50401 and CVE-2026-53309.
- Affected subsystems: NFS server, OCFS2, B.A.T.M.A.N., Netfilter, SCTP, NVIDIA Tegra driver.
- CVEs
- CVE-2022-50401CVE-2026-43071CVE-2026-52914CVE-2026-53002CVE-2026-53043CVE-2026-53045CVE-2026-53224CVE-2026-53309
- Products
- Linux kernelAmazon Web Services
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2022-50401 | Linux kernel: nfsd: under NFSv4.1, fix double svc_xprt_put on rpc_create failure | 7.8 | <1% | ||
| CVE-2026-43071 | Linux kernel: dcache: Limit the minimal number of bucket to two | 9.1 | <1% | ||
CVE-2026-53045+3 related CVEs | Linux kernel: memory: tegra124-emc | 9.8 group max | <1% | ||
| CVE-2026-53224 | Linux kernel: sctp: validate embedded INIT chunk and address list lengths in cookie sctp_unpack_cookie() only checked that… | 9.1 | <1% | ||
| CVE-2026-53309 | Linux kernel: ocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison | 9.8 | <1% |
From the original article
Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - NVIDIA Tegra memory controller driver; - File systems infrastructure; - Network file system (NFS) server daemon; - OCFS2 file system; - B.
ubuntu.com
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