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CVE-2024-26623— pds_core: Prevent race issues involving the adminq

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于pds_core存在安全漏洞。

CVSS 7.8 · High EPSS 0.23% · P12

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 01ba61b55b2041a39c54aefb3153c770dd59a0ef< 22cd6046eb2148b18990257505834dd45c672a1b affected
01ba61b55b2041a39c54aefb3153c770dd59a0ef< 5939feb63ea1f011027576c64b68b681cbad31ca affected
01ba61b55b2041a39c54aefb3153c770dd59a0ef< 7e82a8745b951b1e794cc780d46f3fbee5e93447 affected
6.4 affected
< 6.4 unaffected
6.6.16≤ 6.6.* unaffected
6.7.4≤ 6.7.* unaffected
6.8≤ * unaffected
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I. Basic Information for CVE-2024-26623

Vulnerability Information
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Vulnerability Title
pds_core: Prevent race issues involving the adminq
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: pds_core: Prevent race issues involving the adminq There are multiple paths that can result in using the pdsc's adminq. [1] pdsc_adminq_isr and the resulting work from queue_work(), i.e. pdsc_work_thread()->pdsc_process_adminq() [2] pdsc_adminq_post() When the device goes through reset via PCIe reset and/or a fw_down/fw_up cycle due to bad PCIe state or bad device state the adminq is destroyed and recreated. A NULL pointer dereference can happen if [1] or [2] happens after the adminq is already destroyed. In order to fix this, add some further state checks and implement reference counting for adminq uses. Reference counting was used because multiple threads can attempt to access the adminq at the same time via [1] or [2]. Additionally, multiple clients (i.e. pds-vfio-pci) can be using [2] at the same time. The adminq_refcnt is initialized to 1 when the adminq has been allocated and is ready to use. Users/clients of the adminq (i.e. [1] and [2]) will increment the refcnt when they are using the adminq. When the driver goes into a fw_down cycle it will set the PDSC_S_FW_DEAD bit and then wait for the adminq_refcnt to hit 1. Setting the PDSC_S_FW_DEAD before waiting will prevent any further adminq_refcnt increments. Waiting for the adminq_refcnt to hit 1 allows for any current users of the adminq to finish before the driver frees the adminq. Once the adminq_refcnt hits 1 the driver clears the refcnt to signify that the adminq is deleted and cannot be used. On the fw_up cycle the driver will once again initialize the adminq_refcnt to 1 allowing the adminq to be used again.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于pds_core存在安全漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 01ba61b55b2041a39c54aefb3153c770dd59a0ef ~ 22cd6046eb2148b18990257505834dd45c672a1b -
Linux Linux 6.4 -

II. Public POCs for CVE-2024-26623

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III. Intelligence Information for CVE-2024-26623

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Other References for CVE-2024-26623 (3)

Same Patch Batch · Linux · 2024-03-06 · 27 CVEs total

CVE-2023-52586 7.8 HIGH drm/msm/dpu: Add mutex lock in control vblank irq
CVE-2024-26625 7.8 HIGH llc: call sock_orphan() at release time
CVE-2023-52590 7.8 HIGH ocfs2: Avoid touching renamed directory if parent does not change
CVE-2023-52591 7.8 HIGH reiserfs: Avoid touching renamed directory if parent does not change
CVE-2023-52606 7.8 HIGH powerpc/lib: Validate size for vector operations
CVE-2023-52604 7.8 HIGH FS:JFS:UBSAN:array-index-out-of-bounds in dbAdjTree
CVE-2023-52603 7.8 HIGH UBSAN: array-index-out-of-bounds in dtSplitRoot
CVE-2023-52602 7.8 HIGH jfs: fix slab-out-of-bounds Read in dtSearch
CVE-2023-52601 7.8 HIGH jfs: fix array-index-out-of-bounds in dbAdjTree
CVE-2023-52600 7.8 HIGH jfs: fix uaf in jfs_evict_inode
CVE-2023-52599 7.8 HIGH jfs: fix array-index-out-of-bounds in diNewExt
CVE-2024-26626 7.5 HIGH ipmr: fix kernel panic when forwarding mcast packets
CVE-2023-52588 7.3 HIGH f2fs: fix to tag gcing flag on page during block migration
CVE-2023-52597 KVM: s390: fix setting of fpc register
CVE-2024-26627 scsi: core: Move scsi_host_busy() out of host lock for waking up EH handler
CVE-2023-52607 powerpc/mm: Fix null-pointer dereference in pgtable_cache_add
CVE-2023-52598 s390/ptrace: handle setting of fpc register correctly
CVE-2023-52583 ceph: fix deadlock or deadcode of misusing dget()
CVE-2023-52596 sysctl: Fix out of bounds access for empty sysctl registers
CVE-2023-52595 wifi: rt2x00: restart beacon queue when hardware reset

Showing top 20 of 27 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26623

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