CVE-2024-38586
r8169: Fix possible ring buffer corruption on fragmented Tx packets.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
In the Linux kernel, the following vulnerability has been resolved: r8169: Fix possible ring buffer corruption on fragmented Tx packets. An issue was found on the RTL8125b when transmitting small fragmented packets, whereby invalid entries were inserted into the transmit ring buffer, subsequently leading to calls to dma_unmap_single() with a null address. This was caused by rtl8169_start_xmit() not noticing changes to nr_frags which may occur when small packets are padded (to work around hardware quirks) in rtl8169_tso_csum_v2(). To fix this, postpone inspecting nr_frags until after any padding has been applied.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
5.7
References 7
git.kernel.org
- stable/c/61c1c98e2607120ce9c3fa1bf75e6da909712b27
- stable/c/b6d21cf40de103d63ae78551098a7c06af8c98dd
- stable/c/0c48185a95309556725f818b82120bb74e9c627d
- stable/c/68222d7b4b72aa321135cd453dac37f00ec41fd1
- stable/c/078d5b7500d70af2de6b38e226b03f0b932026a6
- stable/c/54e7a0d111240c92c0f02ceba6eb8f26bf6d6479
- stable/c/c71e3a5cffd5309d7f84444df03d5b72600cc417