CVE-2022-49748
perf/x86/amd: fix potential integer overflow on shift of a int
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: perf/x86/amd: fix potential integer overflow on shift of a int The left shift of int 32 bit integer constant 1 is evaluated using 32 bit arithmetic and then passed as a 64 bit function argument. In the case where i is 32 or more this can lead to an overflow. Avoid this by shifting using the BIT_ULL macro instead.
Timeline
ID reserved
By Linux
Published
- 14 months later
· 14 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)
- 0.19% · top 91% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected d8a6a443ff0aea5893f0a7f2726973b496b76420 – < fbf7b0e4cef3b5470b610f14fb9faa5ee7f63954
- affected 471af006a747f1c535c8a8c6c0973c320fe01b22 – < f84c9b72fb200633774704d8020f769c88a4b249
- affected 471af006a747f1c535c8a8c6c0973c320fe01b22 – < 14cc13e433e1067557435b1adbf05608d7d47a93
- affected 471af006a747f1c535c8a8c6c0973c320fe01b22 – < a4d01fb87ece45d4164fd725890211ccf9a307a9
- affected 471af006a747f1c535c8a8c6c0973c320fe01b22 – < 08245672cdc6505550d1a5020603b0a8d4a6dcc7
- affected 3512462036dbe44d88e93e75ee8a993781183ddb
- affected 5.4.22 – < 5.4.231
- affected 5.5.6 – < 5.6
- affected 5.6
- unaffected < 5.6
- unaffected 5.4.231 – ≤ 5.4.*
- unaffected 5.10.166 – ≤ 5.10.*
- unaffected 5.15.91 – ≤ 5.15.*
- unaffected 6.1.9 – ≤ 6.1.*
- unaffected 6.2 – ≤ *
References (5)
- https://git.kernel.org/stable/c/fbf7b0e4cef3b5470b610f14fb9faa5ee7f63954 (opens in a new tab)
- https://git.kernel.org/stable/c/f84c9b72fb200633774704d8020f769c88a4b249 (opens in a new tab)
- https://git.kernel.org/stable/c/14cc13e433e1067557435b1adbf05608d7d47a93 (opens in a new tab)
- https://git.kernel.org/stable/c/a4d01fb87ece45d4164fd725890211ccf9a307a9 (opens in a new tab)
- https://git.kernel.org/stable/c/08245672cdc6505550d1a5020603b0a8d4a6dcc7 (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)
- 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://trackcve.app/cve/CVE-2022-49748)Record last updated .