Medium severity5.5NVD Advisory· Published Apr 24, 2026· Updated Apr 27, 2026
CVE-2026-31646
CVE-2026-31646
Description
In the Linux kernel, the following vulnerability has been resolved:
net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool()
page_pool_create() can return an ERR_PTR on failure. The return value is used unconditionally in the loop that follows, passing the error pointer through xdp_rxq_info_reg_mem_model() into page_pool_use_xdp_mem(), which dereferences it, causing a kernel oops.
Add an IS_ERR check after page_pool_create() to return early on failure.
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Affected products
9cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 8 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.2.1,<6.6.135
- cpe:2.3:o:linux:linux_kernel:6.2:-:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
5- git.kernel.org/stable/c/305832c53551cfbe6e5b81ca7ee765e60f4fe8e9nvdPatch
- git.kernel.org/stable/c/3fd0da4fd8851a7e62d009b7db6c4a05b092bc19nvdPatch
- git.kernel.org/stable/c/7caf90d9ab97951a58d1de85ab7e7d7cca7a4513nvdPatch
- git.kernel.org/stable/c/b5dcb41ba891b55157006cac79825c78a32b409envdPatch
- git.kernel.org/stable/c/e63265f188ea39dcf5f546770650027528f3bd0fnvdPatch
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