CVE-2023-52834

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux43250ddd75a35d1f7926d989a10fefd30c37eaa7 < c29a89b23f67ee592f4dee61f9d7efbf86d60315affected
LinuxLinux43250ddd75a35d1f7926d989a10fefd30c37eaa7 < 57e44ff9c2c9747b2b1a53556810b0e5192655d6affected
LinuxLinux43250ddd75a35d1f7926d989a10fefd30c37eaa7 < 54a6152da4993ec8e4b53dc3cf577f5a2c829afaaffected
LinuxLinux43250ddd75a35d1f7926d989a10fefd30c37eaa7 < 32f08b7b430ee01ec47d730f961a3306c1c7b6fbaffected
LinuxLinux43250ddd75a35d1f7926d989a10fefd30c37eaa7 < 86565682e9053e5deb128193ea9e88531bbae9cfaffected
LinuxLinux2.6.29affected
LinuxLinux0 < 2.6.29unaffected
LinuxLinux5.15.140 <= 5.15.*unaffected
LinuxLinux6.1.64 <= 6.1.*unaffected
LinuxLinux6.5.13 <= 6.5.*unaffected
LinuxLinux6.6.3 <= 6.6.*unaffected
LinuxLinux6.7 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References