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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
43250ddd75a35d1f7926d989a10fefd30c37eaa7 to < c29a89b23f67ee592f4dee61f9d7efbf86d60315affected43250ddd75a35d1f7926d989a10fefd30c37eaa7 to < 57e44ff9c2c9747b2b1a53556810b0e5192655d6affected43250ddd75a35d1f7926d989a10fefd30c37eaa7 to < 54a6152da4993ec8e4b53dc3cf577f5a2c829afaaffected43250ddd75a35d1f7926d989a10fefd30c37eaa7 to < 32f08b7b430ee01ec47d730f961a3306c1c7b6fbaffected43250ddd75a35d1f7926d989a10fefd30c37eaa7 to < 86565682e9053e5deb128193ea9e88531bbae9cfaffected
Linux Linux
Default version status: affected
2.6.29affected0 to < 2.6.29unaffected5.15.140 to ≤ 5.15.*unaffected6.1.64 to ≤ 6.1.*unaffected6.5.13 to ≤ 6.5.*unaffected6.6.3 to ≤ 6.6.*unaffected6.7 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/c29a89b23f67ee592f4dee61f9d7efbf86d60315 ↗
- https://git.kernel.org/stable/c/57e44ff9c2c9747b2b1a53556810b0e5192655d6 ↗
- https://git.kernel.org/stable/c/54a6152da4993ec8e4b53dc3cf577f5a2c829afa ↗
- https://git.kernel.org/stable/c/32f08b7b430ee01ec47d730f961a3306c1c7b6fb ↗
- https://git.kernel.org/stable/c/86565682e9053e5deb128193ea9e88531bbae9cf ↗