src_350d40f2cc69277bca
- Source-provided label
- Not reported
- Evidence class
- mentioned in report
- Confidence
- Not reported
- Observed
- Dec 13, 2021 00:00 UTC
- Retrieved
- Oct 08, 2026 03:51 UTC
CVE-2021-25491: Kernel NULL Pointer Dereferences due to Missing Error Checks
There are a series of memory corruption vulnerabilities in Samsung Exynos kernels, due to improper error checks, after dma_buf_vmap calls. These bugs can be abused by various privileged processes to cause NULL pointer accesses and crash the kernel. Vulnerability Details The kernel uses the dma_buf_vmap function if it needs to map a dma buffer into the kernel address space to access its content. Th
Reference details
- Source category
- Research & news
- Report title
CVE-2021-25491: Kernel NULL Pointer Dereferences due to Missing Error Checks- First reported
- Dec 13, 2021 00:00 UTC
- Last reported
- Dec 13, 2021 00:00 UTC
- Catalog updated
- Oct 08, 2026 03:51 UTC
- Record ID
a3e004e3a2bedbaefa2569f6ab42160c81875ef9e1cc97d2657eb5a0047a90b8
CVEs mentioned by sources
Published indicators
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Source observations
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1 sources: 0 stale, 0 needing attention, 0 paused, 1 unverified.
Review source update dates and status
- src_350d40f2cc69277bcaCollection status unverifiedLast successful batch: Unverified
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