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CVE-2022-49055drm/amdkfd: Check for potential null return of kmalloc_array()
- 5.5MediumCVSS base score
- 0.27%Exploitation in 30 daysEPSS · top 80% 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: drm/amdkfd: Check for potential null return of kmalloc_array() As the kmalloc_array() may return null, the 'event_waiters[i].wait' would lead to null-pointer dereference. Therefore, it is better to check the return value of kmalloc_array() to avoid this confusion.
Timeline
ID reserved
By Linux
Published
- 15 months later
· 15 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 |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.27% · top 80% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected f3a398183f7b9ef78f6b71ee9f7641e046403bcb – < 32cf90a521dcc0f136db7ee5ba32bfe5f79e460e
- affected f3a398183f7b9ef78f6b71ee9f7641e046403bcb – < 40bf32dbfef866c83a3e74800b81d79e52b6d20b
- affected f3a398183f7b9ef78f6b71ee9f7641e046403bcb – < 94869bb0de69a812f70231b0eb480bb2f7ae73a6
- affected f3a398183f7b9ef78f6b71ee9f7641e046403bcb – < c7a268b33882d5feaafd29c1734456f41ba41396
- affected f3a398183f7b9ef78f6b71ee9f7641e046403bcb – < 1d7a5aae884ca727d41c7ed15d4c82fdb67c040c
- affected f3a398183f7b9ef78f6b71ee9f7641e046403bcb – < f2658d5966bcee8c3eb487875f459756d4f7cdfc
- affected f3a398183f7b9ef78f6b71ee9f7641e046403bcb – < 0a692c625e373fef692ffbc7fc41f8a025f01cb7
- affected f3a398183f7b9ef78f6b71ee9f7641e046403bcb – < ebbb7bb9e80305820dc2328a371c1b35679f2667
- affected 4.2
- unaffected < 4.2
- unaffected 4.9.311 – ≤ 4.9.*
- unaffected 4.14.276 – ≤ 4.14.*
- unaffected 4.19.239 – ≤ 4.19.*
- unaffected 5.4.190 – ≤ 5.4.*
- unaffected 5.10.112 – ≤ 5.10.*
- unaffected 5.15.35 – ≤ 5.15.*
- unaffected 5.17.4 – ≤ 5.17.*
- unaffected 5.18 – ≤ *
References
References8
- https://git.kernel.org/stable/c/32cf90a521dcc0f136db7ee5ba32bfe5f79e460e (opens in a new tab)
- https://git.kernel.org/stable/c/40bf32dbfef866c83a3e74800b81d79e52b6d20b (opens in a new tab)
- https://git.kernel.org/stable/c/94869bb0de69a812f70231b0eb480bb2f7ae73a6 (opens in a new tab)
- https://git.kernel.org/stable/c/c7a268b33882d5feaafd29c1734456f41ba41396 (opens in a new tab)
- https://git.kernel.org/stable/c/1d7a5aae884ca727d41c7ed15d4c82fdb67c040c (opens in a new tab)
- https://git.kernel.org/stable/c/f2658d5966bcee8c3eb487875f459756d4f7cdfc (opens in a new tab)
- https://git.kernel.org/stable/c/0a692c625e373fef692ffbc7fc41f8a025f01cb7 (opens in a new tab)
- https://git.kernel.org/stable/c/ebbb7bb9e80305820dc2328a371c1b35679f2667 (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-2022-55149 (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-2022-49055)Record last updated .