What is CVE-2022-49208?

CVE-2022-49208 is a medium-severity vulnerability in Linux, classified under Integer Underflow. CVSS score: 5.5/10. Published 2025-02-26.

How severe is CVE-2022-49208?

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

Integer overflow in Linux

CVE-2022-49208

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Prevent some integer underflows My static checker complains that: drivers/infiniband/hw/irdma/ctrl.c:3605 irdma_sc_ceq_init() warn: can subtract underflow 'info->dev->hmc_fpm_misc.max_ceqs'? It appears that "info->dev->hmc_fpm_misc.max_ceqs" comes from the firmware in irdma_sc_parse_fpm_query_buf() so, yes, there is a chance that it could be zero. Even if we trust the firmware, it's easy enough to change the condition just as a hardenning measure.

EPSS: 0.003 (18.1th 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 3f49d684256963d3f27dfb9d9ff228e2255be78d, 5.14, 0
Linux Linux_kernel

Weakness classification (CWE)

CWE-191 — Integer Underflow

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)

Frequently asked questions

What is CVE-2022-49208?: CVE-2022-49208 is a medium-severity vulnerability in Linux, classified under Integer Underflow. CVSS score: 5.5/10. Published 2025-02-26.
How severe is CVE-2022-49208?: Medium severity. CVSS v3 base score is 5.5 out of 10.