Vulnerability Details CVE-2021-47003
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: idxd: Fix potential null dereference on pointer status
There are calls to idxd_cmd_exec that pass a null status pointer however
a recent commit has added an assignment to *status that can end up
with a null pointer dereference. The function expects a null status
pointer sometimes as there is a later assignment to *status where
status is first null checked. Fix the issue by null checking status
before making the assignment.
Addresses-Coverity: ("Explicit null dereferenced")
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 2.7%
CVSS Severity
CVSS v3 Score 5.5
References
- https://git.kernel.org/stable/c/2280b4cc29d8cdd2be3d1b2d1ea4f958e2131c97
- https://git.kernel.org/stable/c/28ac8e03c43dfc6a703aa420d18222540b801120
- https://git.kernel.org/stable/c/5756f757c72501ef1a16f5f63f940623044180e9
- https://git.kernel.org/stable/c/7bc402f843e7817a4a808e7b9ab0bcd7ffd55bfa
- https://git.kernel.org/stable/c/2280b4cc29d8cdd2be3d1b2d1ea4f958e2131c97
- https://git.kernel.org/stable/c/28ac8e03c43dfc6a703aa420d18222540b801120
- https://git.kernel.org/stable/c/5756f757c72501ef1a16f5f63f940623044180e9
- https://git.kernel.org/stable/c/7bc402f843e7817a4a808e7b9ab0bcd7ffd55bfa
Products affected by CVE-2021-47003
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cpe:2.3:o:linux:linux_kernel:5.10.17
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cpe:2.3:o:linux:linux_kernel:5.10.18
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cpe:2.3:o:linux:linux_kernel:5.10.19
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cpe:2.3:o:linux:linux_kernel:5.10.20
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cpe:2.3:o:linux:linux_kernel:5.10.21
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cpe:2.3:o:linux:linux_kernel:5.10.22
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cpe:2.3:o:linux:linux_kernel:5.10.23
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cpe:2.3:o:linux:linux_kernel:5.10.24
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cpe:2.3:o:linux:linux_kernel:5.10.25
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cpe:2.3:o:linux:linux_kernel:5.10.26
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cpe:2.3:o:linux:linux_kernel:5.10.27
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cpe:2.3:o:linux:linux_kernel:5.10.28
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cpe:2.3:o:linux:linux_kernel:5.10.29
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cpe:2.3:o:linux:linux_kernel:5.10.30
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cpe:2.3:o:linux:linux_kernel:5.10.31
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cpe:2.3:o:linux:linux_kernel:5.10.32
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cpe:2.3:o:linux:linux_kernel:5.10.33
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cpe:2.3:o:linux:linux_kernel:5.10.34
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cpe:2.3:o:linux:linux_kernel:5.10.35
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cpe:2.3:o:linux:linux_kernel:5.10.36
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cpe:2.3:o:linux:linux_kernel:5.10.37
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cpe:2.3:o:linux:linux_kernel:5.11
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cpe:2.3:o:linux:linux_kernel:5.11.1
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cpe:2.3:o:linux:linux_kernel:5.11.10
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cpe:2.3:o:linux:linux_kernel:5.11.11
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cpe:2.3:o:linux:linux_kernel:5.11.12
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cpe:2.3:o:linux:linux_kernel:5.11.13
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cpe:2.3:o:linux:linux_kernel:5.11.14
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cpe:2.3:o:linux:linux_kernel:5.11.15
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cpe:2.3:o:linux:linux_kernel:5.11.16
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cpe:2.3:o:linux:linux_kernel:5.11.17
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cpe:2.3:o:linux:linux_kernel:5.11.18
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cpe:2.3:o:linux:linux_kernel:5.11.19
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cpe:2.3:o:linux:linux_kernel:5.11.2
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cpe:2.3:o:linux:linux_kernel:5.11.20
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cpe:2.3:o:linux:linux_kernel:5.11.21
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cpe:2.3:o:linux:linux_kernel:5.11.3
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cpe:2.3:o:linux:linux_kernel:5.11.4
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cpe:2.3:o:linux:linux_kernel:5.11.5
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cpe:2.3:o:linux:linux_kernel:5.11.6
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cpe:2.3:o:linux:linux_kernel:5.11.7
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cpe:2.3:o:linux:linux_kernel:5.11.8
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cpe:2.3:o:linux:linux_kernel:5.11.9
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cpe:2.3:o:linux:linux_kernel:5.12
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cpe:2.3:o:linux:linux_kernel:5.12.1
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cpe:2.3:o:linux:linux_kernel:5.12.2
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cpe:2.3:o:linux:linux_kernel:5.12.3
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cpe:2.3:o:linux:linux_kernel:5.12.4