CVE-2024-26739
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-26739
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-26739.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-26739
- Downstream
- Related
- Published
- 2024-04-03T17:15:51Z
- Modified
- 2025-08-09T20:01:26Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net/sched: act_mirred: don't override retval if we already lost the skb
If we're redirecting the skb, and haven't called tcfmirredforward(), yet, we need to tell the core to drop the skb by setting the retcode to SHOT. If we have called tcfmirredforward(), however, the skb is out of our hands and returning SHOT will lead to UaF.
Move the retval override to the error path which actually need it.
- References
-
- https://git.kernel.org/stable/c/166c2c8a6a4dc2e4ceba9e10cfe81c3e469e3210
- https://git.kernel.org/stable/c/28cdbbd38a4413b8eff53399b3f872fd4e80db9d
- https://git.kernel.org/stable/c/f4e294bbdca8ac8757db436fc82214f3882fc7e7
- https://git.kernel.org/stable/c/0117fe0a4615a7c8d30d6ebcbf87332fbe63e6fd
- https://git.kernel.org/stable/c/9d3ef89b6a5e9f2e940de2cef3d543be0be8dec5
- https://git.kernel.org/stable/c/e873e8f7d03a2ee5b77fb1a305c782fed98e2754