Riskcovery

CVE-2023-52834

atl1c: Work around the DMA RX overflow issue

State
Published
Severity
7.5 High
Published
May 21, 2024
Updated
Aug 5, 2026
Reserved
May 21, 2024

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

atl1c: Work around the DMA RX overflow issue

This is based on alx driver commit 881d0327db37 ("net: alx: Work around the DMA RX overflow issue").

The alx and atl1c drivers had RX overflow error which was why a custom allocator was created to avoid certain addresses. The simpler workaround then created for alx driver, but not for atl1c due to lack of tester.

Instead of using a custom allocator, check the allocated skb address and use skb_reserve() to move away from problematic 0x...fc0 address.

Tested on AR8131 on Acer 4540.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 43250ddd75a35d1f7926d989a10fefd30c37eaa7 to before c29a89b23f67ee592f4dee61f9d7efbf86d60315Affected
  • 43250ddd75a35d1f7926d989a10fefd30c37eaa7 to before 57e44ff9c2c9747b2b1a53556810b0e5192655d6Affected
  • 43250ddd75a35d1f7926d989a10fefd30c37eaa7 to before 54a6152da4993ec8e4b53dc3cf577f5a2c829afaAffected
  • 43250ddd75a35d1f7926d989a10fefd30c37eaa7 to before 32f08b7b430ee01ec47d730f961a3306c1c7b6fbAffected
  • 43250ddd75a35d1f7926d989a10fefd30c37eaa7 to before 86565682e9053e5deb128193ea9e88531bbae9cfAffected
LinuxLinux
  • 2.6.29Affected
  • before 2.6.29Not affected
  • 5.15.140 through 5.15.*Not affected
  • 6.1.64 through 6.1.*Not affected
  • 6.5.13 through 6.5.*Not affected
  • 6.6.3 through 6.6.*Not affected
  • 6.7 and laterNot affected

References

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