CVE-2024-56701

Published: Dic 28, 2024 Last Modified: Nov 03, 2025 EU-VD ID: EUVD-2024-53349
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,5
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high

Description

AI Translation Available

In the Linux kernel, the following vulnerability has been resolved:

powerpc/pseries: Fix dtl_access_lock to be a rw_semaphore

The dtl_access_lock needs to be a rw_sempahore, a sleeping lock, because
the code calls kmalloc() while holding it, which can sleep:

# echo 1 > /proc/powerpc/vcpudispatch_stats
BUG: sleeping function called from invalid context at include/linux/sched/mm.h:337
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 199, name: sh
preempt_count: 1, expected: 0
3 locks held by sh/199:
#0: c00000000a0743f8 (sb_writers#3){.+.+}-{0:0}, at: vfs_write+0x324/0x438
#1: c0000000028c7058 (dtl_enable_mutex){+.+.}-{3:3}, at: vcpudispatch_stats_write+0xd4/0x5f4
#2: c0000000028c70b8 (dtl_access_lock){+.+.}-{2:2}, at: vcpudispatch_stats_write+0x220/0x5f4
CPU: 0 PID: 199 Comm: sh Not tainted 6.10.0-rc4 #152
Hardware name: IBM pSeries (emulated by qemu) POWER9 (raw) 0x4e1202 0xf000005 of:SLOF,HEAD hv:linux,kvm pSeries
Call Trace:
dump_stack_lvl+0x130/0x148 (unreliable)
__might_resched+0x174/0x410
kmem_cache_alloc_noprof+0x340/0x3d0
alloc_dtl_buffers+0x124/0x1ac
vcpudispatch_stats_write+0x2a8/0x5f4
proc_reg_write+0xf4/0x150
vfs_write+0xfc/0x438
ksys_write+0x88/0x148
system_call_exception+0x1c4/0x5a0
system_call_common+0xf4/0x258

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0004
Percentile
0,1th
Updated

EPSS Score Trend (Last 90 Days)

Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 5.16 (inclusive)
To 6.1.120 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 6.7 (inclusive)
To 6.11.11 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 5.11 (inclusive)
To 5.15.174 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 5.3 (inclusive)
To 5.10.231 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 6.2 (inclusive)
To 6.6.64 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 6.12 (inclusive)
To 6.12.2 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://git.kernel.org/stable/c/525e18f1ba7c2b098c8ba587fb3…
https://git.kernel.org/stable/c/525e18f1ba7c2b098c8ba587fb397efb34a6574c
https://git.kernel.org/stable/c/6956c0e7346ce1bbfc726755aa8…
https://git.kernel.org/stable/c/6956c0e7346ce1bbfc726755aa8da10d26e84276
https://git.kernel.org/stable/c/a246daa26b717e755ccc9061f47…
https://git.kernel.org/stable/c/a246daa26b717e755ccc9061f47f7cd1c0b358dd
https://git.kernel.org/stable/c/b125d0cf1adde7b2b47d7337fed…
https://git.kernel.org/stable/c/b125d0cf1adde7b2b47d7337fed7e9133eea3463
https://git.kernel.org/stable/c/cadae3a45d23aa4f6485938a67c…
https://git.kernel.org/stable/c/cadae3a45d23aa4f6485938a67cbc47aaaa25e38
https://git.kernel.org/stable/c/f6ec133668757f84e5143f1eb14…
https://git.kernel.org/stable/c/f6ec133668757f84e5143f1eb141fd0b83778b9e
https://git.kernel.org/stable/c/fa5b5ea257135e771b489c83a2e…
https://git.kernel.org/stable/c/fa5b5ea257135e771b489c83a2e93b5935d0108e
https://lists.debian.org/debian-lts-announce/2025/03/msg000…
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html