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CVE-2024-39293— Revert "xsk: Support redirect to any socket bound to the same umem"

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。攻击者利用该漏洞导致内核崩溃。

CVSS 9.8 · Critical EPSS 0.31% · P23

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 6

VendorProduct Version RangeStatus
Linux Linux 2863d665ea41282379f108e4da6c8a2366ba66db< 19cb40b1064566ea09538289bfcf5bc7ecb9b6f5 affected
2863d665ea41282379f108e4da6c8a2366ba66db< 7fcf26b315bbb728036da0862de6b335da83dff2 affected
6.9 affected
< 6.9 unaffected
6.9.5≤ 6.9.* unaffected
6.10≤ * unaffected
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I. Basic Information for CVE-2024-39293

Vulnerability Information
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Vulnerability Title
Revert "xsk: Support redirect to any socket bound to the same umem"
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Revert "xsk: Support redirect to any socket bound to the same umem" This reverts commit 2863d665ea41282379f108e4da6c8a2366ba66db. This patch introduced a potential kernel crash when multiple napi instances redirect to the same AF_XDP socket. By removing the queue_index check, it is possible for multiple napi instances to access the Rx ring at the same time, which will result in a corrupted ring state which can lead to a crash when flushing the rings in __xsk_flush(). This can happen when the linked list of sockets to flush gets corrupted by concurrent accesses. A quick and small fix is not possible, so let us revert this for now.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/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。攻击者利用该漏洞导致内核崩溃。
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 2863d665ea41282379f108e4da6c8a2366ba66db ~ 19cb40b1064566ea09538289bfcf5bc7ecb9b6f5 -
Linux Linux 6.9 -

II. Public POCs for CVE-2024-39293

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III. Intelligence Information for CVE-2024-39293

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Other References for CVE-2024-39293 (2)

Same Patch Batch · Linux · 2024-06-25 · 24 CVEs total

CVE-2024-39471 7.8 HIGH drm/amdgpu: add error handle to avoid out-of-bounds
CVE-2024-37354 7.8 HIGH btrfs: fix crash on racing fsync and size-extending write into prealloc
CVE-2024-37078 7.8 HIGH nilfs2: fix potential kernel bug due to lack of writeback flag waiting
CVE-2024-38306 7.8 HIGH btrfs: protect folio::private when attaching extent buffer folios
CVE-2024-38385 7.8 HIGH genirq/irqdesc: Prevent use-after-free in irq_find_at_or_after()
CVE-2024-39467 7.8 HIGH f2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode()
CVE-2024-39463 7.8 HIGH 9p: add missing locking around taking dentry fid list
CVE-2024-39468 7.5 HIGH smb: client: fix deadlock in smb2_find_smb_tcon()
CVE-2024-39469 7.1 HIGH nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors
CVE-2024-39371 io_uring: check for non-NULL file pointer in io_file_can_poll()
CVE-2024-39470 eventfs: Fix a possible null pointer dereference in eventfs_find_events()
CVE-2024-39466 thermal/drivers/qcom/lmh: Check for SCM availability at probe
CVE-2024-39464 media: v4l: async: Fix notifier list entry init
CVE-2024-39465 media: mgb4: Fix double debugfs remove
CVE-2024-39462 clk: bcm: dvp: Assign ->num before accessing ->hws
CVE-2024-39461 clk: bcm: rpi: Assign ->num before accessing ->hws
CVE-2021-4440 x86/xen: Drop USERGS_SYSRET64 paravirt call
CVE-2024-39301 net/9p: fix uninit-value in p9_client_rpc()
CVE-2024-39298 mm/memory-failure: fix handling of dissolved but not taken off from buddy pages
CVE-2024-39296 bonding: fix oops during rmmod

Showing top 20 of 24 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-39293

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