CVE-2026-80862nvme-tcp: fix usage of page_frag_cache
- —Not scoredno CVSS score yet
- 0.16%Exploitation in 30 daysEPSS · top 95% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: fix usage of page_frag_cache nvme uses page_frag_cache to preallocate PDU for each preallocated request of block device. Block devices are created in parallel threads, consequently page_frag_cache is used in not thread-safe manner. That leads to incorrect refcounting of backstore pages and premature free. That can be catched by !sendpage_ok inside network stack: WARNING: CPU: 7 PID: 467 at ../net/core/skbuff.c:6931 skb_splice_from_iter+0xfa/0x310. tcp_sendmsg_locked+0x782/0xce0 tcp_sendmsg+0x27/0x40 sock_sendmsg+0x8b/0xa0 nvme_tcp_try_send_cmd_pdu+0x149/0x2a0 Then random panic may occur. Fix that by serializing the usage of page_frag_cache.
Timeline
ID reserved
By Linux
- 9 days later
· 9 days later
Published
- 47 days later
· 47 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.16% · top 95% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 4e893ca8117022de68ce1b61c0309e3d17bb8a25 – < d19f98c79f1b7e09e4cdf5c20d626e571e487467
- affected 4e893ca8117022de68ce1b61c0309e3d17bb8a25 – < 64561afb42d8390695bf810d9bbd087cbca00291
- affected 4e893ca8117022de68ce1b61c0309e3d17bb8a25 – < 0a9750263ffacbbd2048a391fd4bd22e2146c57d
- affected 4e893ca8117022de68ce1b61c0309e3d17bb8a25 – < 6e4cf281558709b92ec2ca3054fe2ffc69266ef9
- affected 4e893ca8117022de68ce1b61c0309e3d17bb8a25 – < 36ac05f7cfd59d90c597071304b14e98090d5dd1
- affected c57506918b078ecab7dedebef0f34dbc23ae2e46
- affected 6.6.160 – < 6.7
- affected 6.12
- unaffected < 6.12
- unaffected 6.12.108 – ≤ 6.12.*
- unaffected 6.18.49 – ≤ 6.18.*
- unaffected 7.1.13 – ≤ 7.1.*
- unaffected 7.2.3 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References5
- https://git.kernel.org/stable/c/d19f98c79f1b7e09e4cdf5c20d626e571e487467 (opens in a new tab)
- https://git.kernel.org/stable/c/64561afb42d8390695bf810d9bbd087cbca00291 (opens in a new tab)
- https://git.kernel.org/stable/c/0a9750263ffacbbd2048a391fd4bd22e2146c57d (opens in a new tab)
- https://git.kernel.org/stable/c/6e4cf281558709b92ec2ca3054fe2ffc69266ef9 (opens in a new tab)
- https://git.kernel.org/stable/c/36ac05f7cfd59d90c597071304b14e98090d5dd1 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-71312 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-80862)Record last updated .