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CVE-2024-39468— smb: client: fix deadlock in smb2_find_smb_tcon()

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smb2_find_smb_tcon函数中存在死锁问题。

CVSS 7.5 · High EPSS 0.53% · P43

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 13

VendorProduct Version RangeStatus
Linux Linux 78ebec450ef4f0720c592638d92bad679d75d7ce< b055752675cd1d1db4ac9c2750db3dc3e89ea261 affected
e695a9ad0305af6e8b0cbc24a54976ac2120cbb3< 21f5dd36e655d25a7b45b61c1e537198b671f720 affected
e695a9ad0305af6e8b0cbc24a54976ac2120cbb3< b09b556e48968317887a11243a5331a7bc00ece5 affected
e695a9ad0305af6e8b0cbc24a54976ac2120cbb3< 225de871ddf994f69a57f035709cad9c0ab8615a affected
e695a9ad0305af6e8b0cbc24a54976ac2120cbb3< 8d0f5f1ccf675454a833a573c53830a49b7d1a47 affected
e695a9ad0305af6e8b0cbc24a54976ac2120cbb3< 02c418774f76a0a36a6195c9dbf8971eb4130a15 affected
5.14 affected
< 5.14 unaffected
… +5 more rows
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I. Basic Information for CVE-2024-39468

Vulnerability Information
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Vulnerability Title
smb: client: fix deadlock in smb2_find_smb_tcon()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix deadlock in smb2_find_smb_tcon() Unlock cifs_tcp_ses_lock before calling cifs_put_smb_ses() to avoid such deadlock.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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smb2_find_smb_tcon函数中存在死锁问题。
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 78ebec450ef4f0720c592638d92bad679d75d7ce ~ b055752675cd1d1db4ac9c2750db3dc3e89ea261 -
Linux Linux 5.14 -

II. Public POCs for CVE-2024-39468

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III. Intelligence Information for CVE-2024-39468

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Other References for CVE-2024-39468 (6)

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

CVE-2024-39293 9.8 CRITICAL Revert "xsk: Support redirect to any socket bound to the same umem"
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-2024-39469 7.1 HIGH nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors
CVE-2024-39301 net/9p: fix uninit-value in p9_client_rpc()
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-2024-39371 io_uring: check for non-NULL file pointer in io_file_can_poll()
CVE-2021-4440 x86/xen: Drop USERGS_SYSRET64 paravirt call
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-2024-39468

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