In the Linux kernel, the following vulnerability has been resolved: igbvf: Fix leak in TX DMA error cleanup If an error is encountered …
CVE-2026-74495 · published 15 Aug 2026
How serious is it
- Severity: critical, CVSS score 9.8 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-74495?
Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.
Who is affected
- Linux Linux: 2.6.33
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
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.
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
- git.kernel.org/stable/c/0565052b7e2f436b7f1541f4849da96dc0aa7a0e
- git.kernel.org/stable/c/31089f4eab42e0fc248ec80c26f9b0bad59ba4cc
- git.kernel.org/stable/c/56726ff12cb6759ab90d6f5332c2377aeca7d249
- git.kernel.org/stable/c/845a9cdd9b03b7b6fa8de3ee80579780350a7f65
- git.kernel.org/stable/c/bc25d56c03e41c10bc4b40e99ca5d7b941675c04
- git.kernel.org/stable/c/df07003b5a6c6c9fce60d765d6a3da815a74c41c
- git.kernel.org/stable/c/e3ed89c257f6361f13df23023cd10ace830330ad
- git.kernel.org/stable/c/e42b7225c45f57b42306b80cdd3bda202bae7293
Merged from NVD. Last updated 24 Oct 2026. All vulnerabilities · RSS · JSON