CVE-2024-35819
Assigner: Linux
Published: 2024-05-17T13:23:23.031Z
State: PUBLISHED
descriptions: value: In the Linux kernel, the following vulnerability has been resolved:

soc: fsl: qbman: Use raw spinlock for cgr_lock

smp_call_function always runs its callback in hard IRQ context, even on
PREEMPT_RT, where spinlocks can sleep. So we need to use a raw spinlock
for cgr_lock to ensure we aren't waiting on a sleeping task.

Although this bug has existed for a while, it was not apparent until
commit ef2a8d5478b9 ("net: dpaa: Adjust queue depth on rate change")
which invokes smp_call_function_single via qman_update_cgr_safe every
time a link goes up or down.
affected: product: Linux
vendor: Linux
defaultStatus: unaffected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions: version: 96f413f47677
lessThan: 2b3fede82251
status: affected
versionType: git
version: 96f413f47677
lessThan: ff50716b7d5b
status: affected
versionType: git
version: 96f413f47677
lessThan: 32edca2f03a6
status: affected
versionType: git
version: 96f413f47677
lessThan: 9a3ca8292ce9
status: affected
versionType: git
version: 96f413f47677
lessThan: d6b5aac451c9
status: affected
versionType: git
version: 96f413f47677
lessThan: 54d26adf64c0
status: affected
versionType: git
version: 96f413f47677
lessThan: f39d36b7540c
status: affected
versionType: git
version: 96f413f47677
lessThan: cd53a8ae5aac
status: affected
versionType: git
version: 96f413f47677
lessThan: fbec4e7fed89
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: 4.16
status: affected
version: 0
lessThan: 4.16
status: unaffected
versionType: custom
version: 4.19.312
lessThanOrEqual: 4.19.*
status: unaffected
versionType: custom
version: 5.4.274
lessThanOrEqual: 5.4.*
status: unaffected
versionType: custom
version: 5.10.215
lessThanOrEqual: 5.10.*
status: unaffected
versionType: custom
version: 5.15.154
lessThanOrEqual: 5.15.*
status: unaffected
versionType: custom
version: 6.1.84
lessThanOrEqual: 6.1.*
status: unaffected
versionType: custom
version: 6.6.24
lessThanOrEqual: 6.6.*
status: unaffected
versionType: custom
version: 6.7.12
lessThanOrEqual: 6.7.*
status: unaffected
versionType: custom
version: 6.8.3
lessThanOrEqual: 6.8.*
status: unaffected
versionType: custom
version: 6.9
lessThanOrEqual: *
status: unaffected
versionType: original_commit_for_fix
title: soc: fsl: qbman: Use raw spinlock for cgr_lock
x_generator: engine: bippy-d175d3acf727