CVE-2026-31609
- Source
- https://cve.org/CVERecord?id=CVE-2026-31609
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31609.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-31609
- Downstream
- Related
- Published
- 2026-04-24T14:42:30Z
- Modified
- 2026-07-17T21:00:27Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- smb: client: avoid double-free in smbd_free_send_io() after smbd_send_batch_flush()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
smb: client: avoid double-free in smbd_free_send_io() after smbd_send_batch_flush()
smbd_send_batch_flush() already calls smbd_free_send_io(), so we should not call it again after smbd_post_send() moved it to the batch list.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31609.json" }- References
-
- https://git.kernel.org/stable/c/22b7c1c619d808aec4cad3dc42103345e370d107
- https://git.kernel.org/stable/c/27b7c3e916218b5eb2ee350211140e961bfc49be
- https://git.kernel.org/stable/c/a9940dcbe5cb92482c04efc7341039ddf7dbf607
- https://git.kernel.org/stable/c/f9a162c2bbcd0ac85bd07c5b37cf20286048b65c
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31609.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-31609
- 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
-
Introducedcca0526ef2344cab6944d7f441fc24e152da031bFixeda9940dcbe5cb92482c04efc7341039ddf7dbf607
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced37b5c06956183b65e6808b509cf637632016cdf7Fixed22b7c1c619d808aec4cad3dc42103345e370d107
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced21538121efe6c8c5b51c742fa02cbe820bc48714Fixedf9a162c2bbcd0ac85bd07c5b37cf20286048b65cFixed27b7c3e916218b5eb2ee350211140e961bfc49be