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THREATINT
PUBLISHED

CVE-2022-49748

perf/x86/amd: fix potential integer overflow on shift of a int



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.

Reserved 2025-03-27 | Published 2025-03-27 | Updated 2025-05-04 | Assigner Linux

Product status

Default status
unaffected

d8a6a443ff0aea5893f0a7f2726973b496b76420 before fbf7b0e4cef3b5470b610f14fb9faa5ee7f63954
affected

471af006a747f1c535c8a8c6c0973c320fe01b22 before f84c9b72fb200633774704d8020f769c88a4b249
affected

471af006a747f1c535c8a8c6c0973c320fe01b22 before 14cc13e433e1067557435b1adbf05608d7d47a93
affected

471af006a747f1c535c8a8c6c0973c320fe01b22 before a4d01fb87ece45d4164fd725890211ccf9a307a9
affected

471af006a747f1c535c8a8c6c0973c320fe01b22 before 08245672cdc6505550d1a5020603b0a8d4a6dcc7
affected

3512462036dbe44d88e93e75ee8a993781183ddb
affected

Default status
affected

5.6
affected

Any version before 5.6
unaffected

5.4.231
unaffected

5.10.166
unaffected

5.15.91
unaffected

6.1.9
unaffected

6.2
unaffected

References

git.kernel.org/...c/fbf7b0e4cef3b5470b610f14fb9faa5ee7f63954

git.kernel.org/...c/f84c9b72fb200633774704d8020f769c88a4b249

git.kernel.org/...c/14cc13e433e1067557435b1adbf05608d7d47a93

git.kernel.org/...c/a4d01fb87ece45d4164fd725890211ccf9a307a9

git.kernel.org/...c/08245672cdc6505550d1a5020603b0a8d4a6dcc7

cve.org (CVE-2022-49748)

nvd.nist.gov (CVE-2022-49748)

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