nvme-tcp: fix usage of page_frag_cache (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.16 % · percentile 5 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
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.
References
- https://git.kernel.org/stable/c/d19f98c79f1b7e09e4cdf5c20d626e571e487467
- https://git.kernel.org/stable/c/64561afb42d8390695bf810d9bbd087cbca00291
- https://git.kernel.org/stable/c/0a9750263ffacbbd2048a391fd4bd22e2146c57d
- https://git.kernel.org/stable/c/6e4cf281558709b92ec2ca3054fe2ffc69266ef9
- https://git.kernel.org/stable/c/36ac05f7cfd59d90c597071304b14e98090d5dd1
European references
- ENISA EUVD · EUVD-2026-71312
- GCVE · GCVE-0-2026-80862
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1289 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1253 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 4e893ca8117022de68ce1b61c0309e3d17bb8a25 < d19f98c79f1b7e09e4cdf5c20d626e571e487467 ; affected 4e893ca8117022de68ce1b61c0309e3d17bb8a25 < 64561afb42d8390695bf810d9bbd087cbca00291 ; affected 4e893ca8117022de68ce1b61c0309e3d17bb8a25 < 0a9750263ffacbbd2048a391fd4bd22e2146c57d ; affected 4e893ca8117022de68ce1b61c0309e3d17bb8a25 < 6e4cf281558709b92ec2ca3054fe2ffc69266ef9 ; affected 4e893ca8117022de68ce1b61c0309e3d17bb8a25 < 36ac05f7cfd59d90c597071304b14e98090d5dd1 ; affected c57506918b078ecab7dedebef0f34dbc23ae2e46 |
| Linux · Linux | affected 6.12 ; unaffected 0 < 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.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |