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CVE-2024-50286ksmbd: fix slab-use-after-free in ksmbd_smb2_session_create
- 9.8CriticalCVSS base score
- 0.68%Exploitation in 30 daysEPSS · top 47% 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: ksmbd: fix slab-use-after-free in ksmbd_smb2_session_create There is a race condition between ksmbd_smb2_session_create and ksmbd_expire_session. This patch add missing sessions_table_lock while adding/deleting session from global session table.
Timeline
ID reserved
By Linux
- 29 days later
· 29 days later
Published
- 21 months later
· 21 months 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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.68% · top 47% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
- affected 0626e6641f6b467447c81dd7678a69c66f7746cf – < f56446ba5378d19e31040b548a14ee9a8f1500ea
- affected 0626e6641f6b467447c81dd7678a69c66f7746cf – < e923503a56b3385b64ae492e3225e4623f560c5b
- affected 0626e6641f6b467447c81dd7678a69c66f7746cf – < e7a2ad2044377853cf8c59528dac808a08a99c72
- affected 0626e6641f6b467447c81dd7678a69c66f7746cf – < 0a77715db22611df50b178374c51e2ba0d58866e
- affected 5.15
- unaffected < 5.15
- unaffected 6.1.117 – ≤ 6.1.*
- unaffected 6.6.61 – ≤ 6.6.*
- unaffected 6.11.8 – ≤ 6.11.*
- unaffected 6.12 – ≤ *
References
References5
- https://git.kernel.org/stable/c/f56446ba5378d19e31040b548a14ee9a8f1500ea (opens in a new tab)
- https://git.kernel.org/stable/c/e923503a56b3385b64ae492e3225e4623f560c5b (opens in a new tab)
- https://git.kernel.org/stable/c/e7a2ad2044377853cf8c59528dac808a08a99c72 (opens in a new tab)
- https://git.kernel.org/stable/c/0a77715db22611df50b178374c51e2ba0d58866e (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html (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-2024-45177 (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-2024-50286)Record last updated .