CVE-2021-47056

crypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init

MEDIUM

5.5

CVSS Score

Published: February 29, 2024 at 10:37 PM UTC

Updated: June 17, 2026 at 04:16 AM UTC

1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init ADF_STATUS_PF_RUNNING is (only) used and checked by adf_vf2pf_shutdown() before calling adf_iov_putmsg()->mutex_lock(vf2pf_lock), however the vf2pf_lock is initialized in adf_dev_init(), which can fail and when it fail, the vf2pf_lock is either not initialized or destroyed, a subsequent use of vf2pf_lock will cause issue. To fix this issue, only set this flag if adf_dev_init() returns 0. [ 7.178404] BUG: KASAN: user-memory-access in __mutex_lock.isra.0+0x1ac/0x7c0 [ 7.180345] Call Trace: [ 7.182576] mutex_lock+0xc9/0xd0 [ 7.183257] adf_iov_putmsg+0x118/0x1a0 [intel_qat] [ 7.183541] adf_vf2pf_shutdown+0x4d/0x7b [intel_qat] [ 7.183834] adf_dev_shutdown+0x172/0x2b0 [intel_qat] [ 7.184127] adf_probe+0x5e9/0x600 [qat_dh895xccvf]

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

4.10 ≤ v < 4.14.2334.15 ≤ v < 4.19.1914.20 ≤ v < 5.4.1194.7 ≤ v < 4.14.2334.7 ≤ v < 4.19.1914.7 ≤ v < 4.9.2694.7 ≤ v < 5.10.374.7 ≤ v < 5.11.214.7 ≤ v < 5.12.44.7 ≤ v < 5.134.7 ≤ v < 5.4.1195.11 ≤ v < 5.11.215.12 ≤ v < 5.12.45.5 ≤ v < 5.10.3725c6ffb249f612c56a48ce48a3887adf57b8f4bd4.7

Vendor states this is fixed in 05ec8192ee4bfdf2a8894a68350dac9f1a155fa6 (fixed)

Vendor states this is fixed in 09d16cee6285d37cc76311c29add6d97a7e4acda (fixed)

Vendor states this is fixed in 1ea500ce6f7c9106e4a561d28e69215f3d451818 (fixed)

Vendor states this is fixed in 1f50392650ae794a1aea41c213c6a3e1c824413c (fixed)

Vendor states this is fixed in 20fd40fc6f2c2b41dc6f637f88d494b14e9c21f1 (fixed)

Vendor states this is fixed in 446045cf682af12d9294765f6c46084b374b5654 (fixed)

Vendor states this is fixed in 8609f5cfdc872fc3a462efa6a3eca5cb1e2f6446 (fixed)

Vendor states this is fixed in f4c4e07140687f42bfa40e091bb4a55d7960ce4d (fixed)

Vendor states this is fixed in 4.14.233 (unaffected)

Vendor states this is fixed in 4.19.191 (unaffected)

Vendor states this is fixed in 4.7 (unaffected)

Vendor states this is fixed in 4.9.269 (unaffected)