CVE-2022-49208 (GCVE-0-2022-49208)
Vulnerability from cvelistv5
Published
2025-02-26 01:55
Modified
2025-05-04 08:32
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6f6dbb819dfc1a35bcb8b709b5c83a3ea8beff75Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7340c3675d7ac946f4019b84cd7c64ed542dfe4cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d52dab6e03550f9c97121b0c11c0a3ed78ee76a4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f21056f15bbeacab7b4b87af232f5599d1f2bff1Patch
Impacted products
Vendor Product Version
Linux Linux Version: 3f49d684256963d3f27dfb9d9ff228e2255be78d
Version: 3f49d684256963d3f27dfb9d9ff228e2255be78d
Version: 3f49d684256963d3f27dfb9d9ff228e2255be78d
Version: 3f49d684256963d3f27dfb9d9ff228e2255be78d
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   Linux Linux Version: 5.14
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{
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}


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