perf/x86/amd: fix potential integer overflow on shift of a int
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.5epss 0.2%
exploitation probability
0.2%top 92% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/08245672cdc6505550d1a5020603b0a8d4a6dcc7https://git.kernel.org/stable/c/14cc13e433e1067557435b1adbf05608d7d47a93https://git.kernel.org/stable/c/a4d01fb87ece45d4164fd725890211ccf9a307a9https://git.kernel.org/stable/c/f84c9b72fb200633774704d8020f769c88a4b249https://git.kernel.org/stable/c/fbf7b0e4cef3b5470b610f14fb9faa5ee7f63954