Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: powerpc/powernv/sriov: perform null check on iov before dereferencing iov Currently pointer iov is being dereferenced before the null check of iov which can lead to null pointer dereference errors. Fix this by moving the iov null check before the dereferencing. Detected using cppcheck static analysis: linux/arch/powerpc/platforms/powernv/pci-sriov.c:597:12: warning: Either the condition '!iov' is redundant or there is possible null pointer dereference: iov. [nullPointerRedundantCheck] num_vfs = iov->num_vfs; ^
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 052da31d45fc71238ea8bed7e9a84648a1ee0bf3 before 07c19c0ad4b07f4b598da369714de028f6a6a323; affected 052da31d45fc71238ea8bed7e9a84648a1ee0bf3 before d3a0d96c16e5f8d55e2c70163abda3c7c8328106; affected 052da31d45fc71238ea8bed7e9a84648a1ee0bf3 before d9a1aaea856002cb58dfb7c8d8770400fa1a0299; affected 052da31d45fc71238ea8bed7e9a84648a1ee0bf3 before 6314465b88072a6b6f3b3c12a7898abe09095f95; affected 052da31d45fc71238ea8bed7e9a84648a1ee0bf3 before 72990144e17e5e2cb378f1d9b10530b85b9bc382; affected 052da31d45fc71238ea8bed7e9a84648a1ee0bf3 before f4f913c980bc6abe0ccfe88fe3909c125afe4a2d |
| Linux / Linux | affected 5.9; unaffected 0 before 5.9; unaffected 5.10.188 through 5.10.*; unaffected 5.15.121 through 5.15.*; unaffected 6.1.39 through 6.1.*; unaffected 6.3.13 through 6.3.*; unaffected 6.4.4 through 6.4.*; unaffected 6.5 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/07c19c0ad4b07f4b598da369714de028f6a6a323
- https://git.kernel.org/stable/c/d3a0d96c16e5f8d55e2c70163abda3c7c8328106
- https://git.kernel.org/stable/c/d9a1aaea856002cb58dfb7c8d8770400fa1a0299
- https://git.kernel.org/stable/c/6314465b88072a6b6f3b3c12a7898abe09095f95
- https://git.kernel.org/stable/c/72990144e17e5e2cb378f1d9b10530b85b9bc382
- https://git.kernel.org/stable/c/f4f913c980bc6abe0ccfe88fe3909c125afe4a2d