What is CVE-2022-49710?

CVE-2022-49710 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2025-02-26.

How severe is CVE-2022-49710?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Linux

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.

EPSS: 0.003 (20.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions 29121bd0b00ebb9524971a583fea4a2f7afe8041, 2.6.18, 0
Linux Linux_kernel — versions 5.19

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2022-49710?: CVE-2022-49710 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2025-02-26.
How severe is CVE-2022-49710?: Medium severity. CVSS v3 base score is 5.5 out of 10.