CVE-2021-47301
Assigner: Linux
Published: 2024-05-21T14:35:22.705Z
State: PUBLISHED
descriptions: value: In the Linux kernel, the following vulnerability has been resolved:

igb: Fix use-after-free error during reset

Cleans the next descriptor to watch (next_to_watch) when cleaning the
TX ring.

Failure to do so can cause invalid memory accesses. If igb_poll() runs
while the controller is reset this can lead to the driver try to free
a skb that was already freed.

(The crash is harder to reproduce with the igb driver, but the same
potential problem exists as the code is identical to igc)
affected: product: Linux
vendor: Linux
defaultStatus: unaffected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions: version: 7cc6fd4c60f2
lessThan: d7367f781e5a
status: affected
versionType: git
version: 7cc6fd4c60f2
lessThan: d3ccb18ed5ac
status: affected
versionType: git
version: 7cc6fd4c60f2
lessThan: 88e0720133d4
status: affected
versionType: git
version: 7cc6fd4c60f2
lessThan: f153664d8e70
status: affected
versionType: git
version: 7cc6fd4c60f2
lessThan: 8e24c12f2ff6
status: affected
versionType: git
version: 7cc6fd4c60f2
lessThan: 7b292608db23
status: affected
versionType: git
product: Linux
vendor: Linux
defaultStatus: affected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions: version: 4.12
status: affected
version: 0
lessThan: 4.12
status: unaffected
versionType: custom
version: 4.14.241
lessThanOrEqual: 4.14.*
status: unaffected
versionType: custom
version: 4.19.199
lessThanOrEqual: 4.19.*
status: unaffected
versionType: custom
version: 5.4.136
lessThanOrEqual: 5.4.*
status: unaffected
versionType: custom
version: 5.10.54
lessThanOrEqual: 5.10.*
status: unaffected
versionType: custom
version: 5.13.6
lessThanOrEqual: 5.13.*
status: unaffected
versionType: custom
version: 5.14
lessThanOrEqual: *
status: unaffected
versionType: original_commit_for_fix
title: igb: Fix use-after-free error during reset
x_generator: engine: bippy-d175d3acf727