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CVE-2024-36922— wifi: iwlwifi: read txq->read_ptr under lock

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，该漏洞源于可以在未锁定的情况下读取相同的值两次。

CVSS 8.8 · High EPSS 0.35% · P27

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6< f30e8af109818c9db08cbcc46eb9713fe4b530ba affected
7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6< aab7b39fcac5f6165f6434bcbb56bb7865d4ad2b affected
7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6< b83db8e756dec68a950ed2f056248b1704b3deaa affected
7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6< 43d07103df670484cdd26f9588eabef80f69db89 affected
7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6< c2ace6300600c634553657785dfe5ea0ed688ac2 affected
4.19 affected
< 4.19 unaffected
5.15.209≤ 5.15.* unaffected
… +4 more rows
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I. Basic Information for CVE-2024-36922

Vulnerability Information
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Vulnerability Title
wifi: iwlwifi: read txq->read_ptr under lock
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: read txq->read_ptr under lock If we read txq->read_ptr without lock, we can read the same value twice, then obtain the lock, and reclaim from there to two different places, but crucially reclaim the same entry twice, resulting in the WARN_ONCE() a little later. Fix that by reading txq->read_ptr under lock.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/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，该漏洞源于可以在未锁定的情况下读取相同的值两次。
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 7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6 ~ f30e8af109818c9db08cbcc46eb9713fe4b530ba -
Linux Linux 4.19 -

II. Public POCs for CVE-2024-36922

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III. Intelligence Information for CVE-2024-36922

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Patches & Fixes for CVE-2024-36922 (3)

Other References for CVE-2024-36922 (2)

Same Patch Batch · Linux · 2024-05-30 · 93 CVEs total

CVE-2024-36958 9.8 CRITICAL NFSD: Fix nfsd4_encode_fattr4() crasher
CVE-2024-36886 9.8 CRITICAL tipc: fix UAF in error path
CVE-2024-36911 9.8 CRITICAL hv_netvsc: Don't free decrypted memory
CVE-2024-36912 9.6 CRITICAL Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl
CVE-2024-36909 9.3 CRITICAL Drivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted
CVE-2024-36913 9.3 CRITICAL Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails
CVE-2024-36921 8.8 HIGH wifi: iwlwifi: mvm: guard against invalid STA ID on removal
CVE-2024-36910 8.4 HIGH uio_hv_generic: Don't free decrypted memory
CVE-2024-36032 8.1 HIGH Bluetooth: qca: fix info leak when fetching fw build id
CVE-2024-36933 7.8 HIGH nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment().
CVE-2024-36904 7.8 HIGH tcp: Use refcount_inc_not_zero() in tcp_twsk_unique().
CVE-2024-36018 7.8 HIGH nouveau/uvmm: fix addr/range calcs for remap operations
CVE-2024-36918 7.8 HIGH bpf: Check bloom filter map value size
CVE-2024-36928 7.8 HIGH s390/qeth: Fix kernel panic after setting hsuid
CVE-2024-36894 7.8 HIGH usb: gadget: f_fs: Fix race between aio_cancel() and AIO request complete
CVE-2024-36890 7.8 HIGH mm/slab: make __free(kfree) accept error pointers
CVE-2024-36940 7.8 HIGH pinctrl: core: delete incorrect free in pinctrl_enable()
CVE-2024-36884 7.8 HIGH iommu/arm-smmu: Use the correct type in nvidia_smmu_context_fault()
CVE-2024-36914 7.8 HIGH drm/amd/display: Skip on writeback when it's not applicable
CVE-2024-36883 7.8 HIGH net: fix out-of-bounds access in ops_init

Showing top 20 of 93 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-36922

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