CVE-2022-49208
RDMA/irdma: Prevent some integer underflows
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Feb 26, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
3f49d684256963d3f27dfb9d9ff228e2255be78d < d52dab6e03550f9c97121b0c11c0a3ed78ee76a4 3f49d684256963d3f27dfb9d9ff228e2255be78d < f21056f15bbeacab7b4b87af232f5599d1f2bff1 3f49d684256963d3f27dfb9d9ff228e2255be78d < 7340c3675d7ac946f4019b84cd7c64ed542dfe4c 3f49d684256963d3f27dfb9d9ff228e2255be78d < 6f6dbb819dfc1a35bcb8b709b5c83a3ea8beff75
Linux / Linux
5.14
References
git.kernel.org: https://git.kernel.org/stable/c/d52dab6e03550f9c97121b0c11c0a3ed78ee76a4 git.kernel.org: https://git.kernel.org/stable/c/f21056f15bbeacab7b4b87af232f5599d1f2bff1 git.kernel.org: https://git.kernel.org/stable/c/7340c3675d7ac946f4019b84cd7c64ed542dfe4c git.kernel.org: https://git.kernel.org/stable/c/6f6dbb819dfc1a35bcb8b709b5c83a3ea8beff75