CVE-2022-49710

In the Linux kernel, the following vulnerability has been resolved: dm mirror log: round up region bitmap size to BITS_PER_LONG The code in dm-log rounds up bitset_size to 32 bits. It then uses find_next_zero_bit_le on the allocated region. find_next_zero_bit_le accesses the bitmap using unsigned long pointers. So, on 64-bit architectures, it may access 4 bytes beyond the allocated size. Fix this bug by rounding up bitset_size to BITS_PER_LONG. This bug was found by running the lvm2 testsuite with kasan.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/0d2209b54f1de0c2f99cab246d4cf2cfe24aaaa9	Patch
https://git.kernel.org/stable/c/85e123c27d5cbc22cfdc01de1e2ca1d9003a02d0	Patch
https://git.kernel.org/stable/c/9a02f3275acc628c0d956be771405ced79ac36df	Patch
https://git.kernel.org/stable/c/ae460312875159285cef5bf3dc654593f404a1ef	Patch
https://git.kernel.org/stable/c/ba751f0d25f07aa21ce9b85372a3792bf7969d13	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc2::::::

History

No history.

Information

Published : 2025-02-26 07:01

Updated : 2025-10-24 15:53

NVD link : CVE-2022-49710

Mitre link : CVE-2022-49710

CVE.ORG link : CVE-2022-49710

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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