CVE-2024-56690

crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY

MEDIUM
5.5
CVSS Score
Published: December 28, 2024 at 09:46 AM UTC
Updated: June 17, 2026 at 08:12 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY Since commit 8f4f68e788c3 ("crypto: pcrypt - Fix hungtask for PADATA_RESET"), the pcrypt encryption and decryption operations return -EAGAIN when the CPU goes online or offline. In alg_test(), a WARN is generated when pcrypt_aead_decrypt() or pcrypt_aead_encrypt() returns -EAGAIN, the unnecessary panic will occur when panic_on_warn set 1. Fix this issue by calling crypto layer directly without parallelization in that case.

Affected

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

v ≥ 4.14.331v ≥ 6.5.134.14.331 ≤ v < 4.154.19.300 ≤ v < 4.19.3255.10.202 ≤ v < 5.10.2315.15.140 ≤ v < 5.15.1745.4.262 ≤ v < 5.4.2876.1.64 ≤ v < 6.1.1206.12 ≤ v < 6.12.26.5.13 ≤ v < 6.66.6.3 ≤ v < 6.6.646.7 ≤ v < 6.11.116.7 ≤ v < 6.12.26.7 ≤ v < 6.13372636debe852913529b1716f44addd94fff2d2839fec48e62504f14845124a1a25eb199b2ddc04.14.3314.19.3005.10.2025.15.1405.4.262546c1796ad1ed0d87dab3c4b5156d75819be23166.1.646.5.136.6.36.78f4f68e788c3a7a696546291258bfa5fdb215523c55fc098fd9d2dca475b82d00ffbcaf97879d77ec9c1334697301c10e6918d747ed38abfbc0c96e7e134f3aba98e6c801a693f540912c2d493718ddfe97bf4ada7dddacd184c3e196bd063b0dc71b41dfb2d3a50a8f29a3c66682bb426144f40e32ab818
Vendor states this is fixed in 5edae7a9a35606017ee6e05911c290acee9fee5a (fixed)
Vendor states this is fixed in 662f2f13e66d3883b9238b0b96b17886179e60e2 (fixed)
Vendor states this is fixed in 7ddab756f2de5b7b43c122ebebdf37f400fb2b6f (fixed)
Vendor states this is fixed in 92834692a539b5b7f409e467a14667d64713b732 (fixed)
Vendor states this is fixed in 96001f52ae8c70e2c736d3e1e5dc53d5b521e5ca (fixed)
Vendor states this is fixed in a8e0074ffb38c9a5964a221bb998034d016c93a2 (fixed)
Vendor states this is fixed in a92ccd3618e42333ac6f150ecdac14dca298bc7a (fixed)
Vendor states this is fixed in dd8bf8eb5beba1e7c3b11a9a5a58ccbf345a69e6 (fixed)
Vendor states this is fixed in fca8aed12218f96b38e374ff264d78ea1fbd23cc (fixed)
Affected range stops below 4.15, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 4.19.325 (unaffected)
Vendor states this is fixed in 5.10.231 (unaffected)
Vendor states this is fixed in 5.15.174 (unaffected)
Vendor states this is fixed in 5.4.287 (unaffected)
Vendor states this is fixed in 6.1.120 (unaffected)
Vendor states this is fixed in 6.11.11 (unaffected)
Vendor states this is fixed in 6.12.2 (unaffected)
Vendor states this is fixed in 6.13 (unaffected)
Affected range stops below 6.6, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 6.6.64 (unaffected)
Vendor states this is fixed in 6.7 (unaffected)

References (11)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/5edae7a9a35606017ee6e05911c290acee9fee5a
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/662f2f13e66d3883b9238b0b96b17886179e60e2
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7ddab756f2de5b7b43c122ebebdf37f400fb2b6f
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/92834692a539b5b7f409e467a14667d64713b732
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/96001f52ae8c70e2c736d3e1e5dc53d5b521e5ca
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a8e0074ffb38c9a5964a221bb998034d016c93a2
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a92ccd3618e42333ac6f150ecdac14dca298bc7a
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/dd8bf8eb5beba1e7c3b11a9a5a58ccbf345a69e6

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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