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MediumFix available

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

Type: advisorySources: OSV

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.

Products
Kernel
Affected versions
Not specified
Fixed versions
5.10.166, 5.15.91, 5.4.231, 6.1.9
CVEs
CVE-2022-49748
Confirmed fixed CVEs
Not specified
Updated in this feed
2 Nov 2026, 19:50 UTC · Revision 1

Source evidence

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

core-osv · Original source

Published 27 Mar 2025, 16:42 UTC

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.

osv:CVE-2022-49748

Kernel

Fixed versions: 5.4.231, 5.10.166, 5.15.91, 6.1.9

Complete source record
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  "url": "https://osv.dev/vulnerability/CVE-2022-49748",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "perf/x86/amd: fix potential integer overflow on shift of a int",
    "summary": "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.",
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  "source_id": "core-osv",
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  "published_at": "2025-03-27T16:42:57.784+00:00"
}