CVE-2026-74495

Katalog CVE

CVSS 9.8 · Critical EPSS 0,51%

Skor CVSS 3.1 9.8 (Critical) menurut CNA.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

15 Agustus 2026

Terakhir diubah

19 Agustus 2026

Status NVD

Received

CVSS 3.1

9.8 (Critical), sumber CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

EPSS (30 hari)

0,51% peluang dieksploitasi; lebih tinggi dari 42,1% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/0565052b7e2f436b7f1541f4849da96dc0aa7a0e
• https://git.kernel.org/stable/c/31089f4eab42e0fc248ec80c26f9b0bad59ba4cc
• https://git.kernel.org/stable/c/56726ff12cb6759ab90d6f5332c2377aeca7d249
• https://git.kernel.org/stable/c/845a9cdd9b03b7b6fa8de3ee80579780350a7f65
• https://git.kernel.org/stable/c/bc25d56c03e41c10bc4b40e99ca5d7b941675c04
• https://git.kernel.org/stable/c/df07003b5a6c6c9fce60d765d6a3da815a74c41c
• https://git.kernel.org/stable/c/e3ed89c257f6361f13df23023cd10ace830330ad
• https://git.kernel.org/stable/c/e42b7225c45f57b42306b80cdd3bda202bae7293