Description
In the Linux kernel, the following vulnerability has been resolved: net: ena: Fix incorrect descriptor free behavior ENA has two types of TX queues: - queues which only process TX packets arriving from the network stack - queues which only process TX packets forwarded to it by XDP_REDIRECT or XDP_TX instructions The ena_free_tx_bufs() cycles through all descriptors in a TX queue and unmaps + frees every descriptor that hasn't been acknowledged yet by the device (uncompleted TX transactions). The function assumes that the processed TX queue is necessarily from the first category listed above and ends up using napi_consume_skb() for descriptors belonging to an XDP specific queue. This patch solves a bug in which, in case of a VF reset, the descriptors aren't freed correctly, leading to crashes.
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
548c4940b9f1f527f81509468dd60b61418880b6 to < b26aa765f7437e1bbe8db4c1641b12bd5dd378f0affected548c4940b9f1f527f81509468dd60b61418880b6 to < fdfbf54d128ab6ab255db138488f9650485795a2affected548c4940b9f1f527f81509468dd60b61418880b6 to < 19ff8fed3338898b70b2aad831386c78564912e1affected548c4940b9f1f527f81509468dd60b61418880b6 to < 5c7f2240d9835a7823d87f7460d8eae9f4e504c7affected548c4940b9f1f527f81509468dd60b61418880b6 to < c31baa07f01307b7ae05f3ce32b89d8e2ba0cc1daffected548c4940b9f1f527f81509468dd60b61418880b6 to < bf02d9fe00632d22fa91d34749c7aacf397b6cdeaffected
Linux Linux
Default version status: affected
5.6affected0 to < 5.6unaffected5.10.216 to ≤ 5.10.*unaffected5.15.156 to ≤ 5.15.*unaffected6.1.87 to ≤ 6.1.*unaffected6.6.28 to ≤ 6.6.*unaffected6.8.7 to ≤ 6.8.*unaffected6.9 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/b26aa765f7437e1bbe8db4c1641b12bd5dd378f0 ↗
- https://git.kernel.org/stable/c/fdfbf54d128ab6ab255db138488f9650485795a2 ↗
- https://git.kernel.org/stable/c/19ff8fed3338898b70b2aad831386c78564912e1 ↗
- https://git.kernel.org/stable/c/5c7f2240d9835a7823d87f7460d8eae9f4e504c7 ↗
- https://git.kernel.org/stable/c/c31baa07f01307b7ae05f3ce32b89d8e2ba0cc1d ↗
- https://git.kernel.org/stable/c/bf02d9fe00632d22fa91d34749c7aacf397b6cde ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html ↗