9.8 CVE-2026-31414

Enriched by CISA Patch
 

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_expect: use expect->helper Use expect->helper in ctnetlink and /proc to dump the helper name. Using nfct_help() without holding a reference to the master conntrack is unsafe. Use exp->master->helper in ctnetlink path if userspace does not provide an explicit helper when creating an expectation to retain the existing behaviour. The ctnetlink expectation path holds the reference on the master conntrack and nf_conntrack_expect lock and the nfnetlink glue path refers to the master ct that is attached to the skb.
https://nvd.nist.gov/vuln/detail/CVE-2026-31414

Categories

CWE-NVD-noinfo

References


 

AFFECTED (from MITRE)

Vendor Product Versions
Linux Linux
  • ea781f197d6a835cbb93a0bf88ee1696296ed8aa < 847cb7fe26c5ce5dce0d1a41fac1ea488b7f1781 [affected]
  • ea781f197d6a835cbb93a0bf88ee1696296ed8aa < e7ccaa0a62a8ff2be5d521299ce79390c318d306 [affected]
  • ea781f197d6a835cbb93a0bf88ee1696296ed8aa < 4bd1b3d839172724b33d8d02c5a4ff6a1c775417 [affected]
  • ea781f197d6a835cbb93a0bf88ee1696296ed8aa < b53294bff19e56ada2f230ceb8b1ffde61cc3817 [affected]
  • ea781f197d6a835cbb93a0bf88ee1696296ed8aa < 3dfd3f7712b5a800f2ba632179e9b738076a51f0 [affected]
  • ea781f197d6a835cbb93a0bf88ee1696296ed8aa < f01794106042ee27e54af6fdf5b319a2fe3df94d [affected]
Linux Linux
  • 2.6.30 [affected]
  • < 2.6.30 [unaffected]
  • 6.1.168 ≤ 6.1.* [unaffected]
  • 6.6.134 ≤ 6.6.* [unaffected]
  • 6.12.81 ≤ 6.12.* [unaffected]
  • 6.18.22 ≤ 6.18.* [unaffected]
  • 6.19.12 ≤ 6.19.* [unaffected]
  • 7.0 ≤ * [unaffected]
© 2022 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.

CPE

cpe start end
Configuration 1
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 2.6.30 < 6.1.168
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 6.2 < 6.6.134
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 6.7 < 6.12.81
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 6.13 < 6.18.22
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 6.19 < 6.19.12
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*

REMEDIATION

Patch

Url
https://git.kernel.org/stable/c/3dfd3f7712b5a800f2ba632179e9b738076a51f0
https://git.kernel.org/stable/c/4bd1b3d839172724b33d8d02c5a4ff6a1c775417
https://git.kernel.org/stable/c/847cb7fe26c5ce5dce0d1a41fac1ea488b7f1781
https://git.kernel.org/stable/c/b53294bff19e56ada2f230ceb8b1ffde61cc3817
https://git.kernel.org/stable/c/e7ccaa0a62a8ff2be5d521299ce79390c318d306
https://git.kernel.org/stable/c/f01794106042ee27e54af6fdf5b319a2fe3df94d

EXPLOITS

Exploit-db.com

id description date
No known exploits

POC Github

Url
No known exploits

Other Nist (github, ...)

Url
No known exploits

CAPEC

Common Attack Pattern Enumerations and Classifications

id description severity
No entry