CVE-2026-74495

CVE CVE-2026-74495EUVD EUVD-2026-59688Published 2026-08-15T12:27:23.000ZLast changed 2026-08-19T16:37:53.000ZCVSS 9.8

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: igbvf: Fix leak in TX DMA error cleanup If an error is encountered while mapping TX buffers, the driver should unmap any buffers already mapped for that skb. Because count is incremented before each frag mapping, it will always match the correct number of unmappings needed when dma_error is reached. Decrementing count before the while loop in dma_error causes an off-by-one error. If any mapping was successful before an unsuccessful mapping, exactly one DMA mapping (the head) would leak. This bug was introduced by a 2010 fix for an endless loop in dma_error. All other affected drivers have already been fixed.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux c1fa347f20f17f14a4a1575727fa24340e8a9117 <0565052b7e2f436b7f1541f4849da96dc0aa7a0e; patch: 6.18.44; patch: 6.6.151; patch: 7.2; c1fa347f20f17f14a4a1575727fa24340e8a9117 <e3ed89c257f6361f13df23023cd10ace830330ad; c1fa347f20f17f14a4a1575727fa24340e8a9117 <bc25d56c03e41c10bc4b40e99ca5d7b941675c04; patch: 5.15.216; c1fa347f20f17f14a4a1575727fa24340e8a9117 <31089f4eab42e0fc248ec80c26f9b0bad59ba4cc; c1fa347f20f17f14a4a1575727fa24340e8a9117 <845a9cdd9b03b7b6fa8de3ee80579780350a7f65; patch: 5.10.265; patch: 0; patch: 6.1.183; patch: 7.1.8; c1fa347f20f17f14a4a1575727fa24340e8a9117 <df07003b5a6c6c9fce60d765d6a3da815a74c41c; 2.6.33; c1fa347f20f17f14a4a1575727fa24340e8a9117 <e42b7225c45f57b42306b80cdd3bda202bae7293; c1fa347f20f17f14a4a1575727fa24340e8a9117 <56726ff12cb6759ab90d6f5332c2377aeca7d249; patch: 6.12.103

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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