CVE-2022-49748

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

State: Published
Severity: 5.5 Medium
Published: Mar 27, 2025
Updated: May 23, 2026
Reserved: Mar 27, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-190 Integer Overflow or Wraparound

Affected Products

Product	Versions
LinuxLinux	d8a6a443ff0aea5893f0a7f2726973b496b76420 to before fbf7b0e4cef3b5470b610f14fb9faa5ee7f63954Affected 471af006a747f1c535c8a8c6c0973c320fe01b22 to before f84c9b72fb200633774704d8020f769c88a4b249Affected 471af006a747f1c535c8a8c6c0973c320fe01b22 to before 14cc13e433e1067557435b1adbf05608d7d47a93Affected 471af006a747f1c535c8a8c6c0973c320fe01b22 to before a4d01fb87ece45d4164fd725890211ccf9a307a9Affected 471af006a747f1c535c8a8c6c0973c320fe01b22 to before 08245672cdc6505550d1a5020603b0a8d4a6dcc7Affected 3512462036dbe44d88e93e75ee8a993781183ddbAffected 5.4.22 to before 5.4.231Affected 5.5.6 to before 5.6Affected
LinuxLinux	5.6Affected before 5.6Not affected 5.4.231 through 5.4.Not affected 5.10.166 through 5.10.Not affected 5.15.91 through 5.15.Not affected 6.1.9 through 6.1.Not affected 6.2 and laterNot affected

Product

Versions

LinuxLinux

d8a6a443ff0aea5893f0a7f2726973b496b76420 to before fbf7b0e4cef3b5470b610f14fb9faa5ee7f63954Affected
471af006a747f1c535c8a8c6c0973c320fe01b22 to before f84c9b72fb200633774704d8020f769c88a4b249Affected
471af006a747f1c535c8a8c6c0973c320fe01b22 to before 14cc13e433e1067557435b1adbf05608d7d47a93Affected
471af006a747f1c535c8a8c6c0973c320fe01b22 to before a4d01fb87ece45d4164fd725890211ccf9a307a9Affected
471af006a747f1c535c8a8c6c0973c320fe01b22 to before 08245672cdc6505550d1a5020603b0a8d4a6dcc7Affected
3512462036dbe44d88e93e75ee8a993781183ddbAffected
5.4.22 to before 5.4.231Affected
5.5.6 to before 5.6Affected

LinuxLinux

5.6Affected
before 5.6Not affected
5.4.231 through 5.4.*Not affected
5.10.166 through 5.10.*Not affected
5.15.91 through 5.15.*Not affected
6.1.9 through 6.1.*Not affected
6.2 and laterNot affected

References

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