CVE-2026-64414
- Source
- https://cve.org/CVERecord?id=CVE-2026-64414
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-64414.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-64414
- Downstream
- Related
- Published
- 2026-07-25T08:50:54Z
- Modified
- 2026-09-06T03:30:34Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- netfilter: handle unreadable frags
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
netfilter: handle unreadable frags
sashiko reports: When an skb with unreadable fragments (such as from devmem TCP, where skb_frags_readable(skb) returns false) is processed by the u32 module, skb_copy_bits() will safely return a negative error code [..]
xt_u32: bail out with hotdrop in this case. gather_frags: return -1, just as if we had no fragment header. nfnetlink_queue: restrict to the linear part. nfnetlink_log: restrict to the linear part.
v2:
- skb_zerocopy helpers don't copy readable flag, i.e. nfnetlink_queue is broken too xt_u32 shouldn't return true if hotdrop was set.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64414.json" }- References
-
- https://git.kernel.org/stable/c/3b13e7635795394705920cca1e1db7e4ca2e334b
- https://git.kernel.org/stable/c/57056be3ec12e7d9ecd20a60d4060f510e4f284c
- https://git.kernel.org/stable/c/da5b58478a9c1b85608c9e40a3b8432d071b409e
- https://git.kernel.org/stable/c/fc5bfe63bacf8a3ae307b62b34206406ca733354
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64414.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-64414
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced65249feb6b3df9e17bab5911ee56fa7b0971e231Fixed3b13e7635795394705920cca1e1db7e4ca2e334bFixedfc5bfe63bacf8a3ae307b62b34206406ca733354Fixed57056be3ec12e7d9ecd20a60d4060f510e4f284cFixedda5b58478a9c1b85608c9e40a3b8432d071b409e