High severity7.5NVD Advisory· Published Sep 27, 2019· Updated Jun 17, 2026

CVE-2019-16921

Description

In the Linux kernel before 4.17, hns_roce_alloc_ucontext in drivers/infiniband/hw/hns/hns_roce_main.c does not initialize the resp data structure, which might allow attackers to obtain sensitive information from kernel stack memory, aka CID-df7e40425813.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Linux/Kernel2 versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: <4.17
- (no CPE)range: <4.17
Linux/Linux kerneldescription

Patches

Vulnerability mechanics

References

git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvdPatchVendor Advisory
github.com/torvalds/linux/commit/df7e40425813c50cd252e6f5e348a81ef1acae56nvdPatchThird Party Advisory

News mentions

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cvss	0.488
epss	0.002
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000