Executive Summary

Informations
Name CVE-2022-49765 First vendor Publication 2025-05-01
Vendor Cve Last vendor Modification 2025-05-02

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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

net/9p: use a dedicated spinlock for trans_fd

Shamelessly copying the explanation from Tetsuo Handa's suggested patch[1] (slightly reworded): syzbot is reporting inconsistent lock state in p9_req_put()[2], for p9_tag_remove() from p9_req_put() from IRQ context is using spin_lock_irqsave() on "struct p9_client"->lock but trans_fd (not from IRQ context) is using spin_lock().

Since the locks actually protect different things in client.c and in trans_fd.c, just replace trans_fd.c's lock by a new one specific to the transport (client.c's protect the idr for fid/tag allocations, while trans_fd.c's protects its own req list and request status field that acts as the transport's state machine)

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-49765

Sources (Detail)

https://git.kernel.org/stable/c/296ab4a813841ba1d5f40b03190fd1bd8f25aab0
https://git.kernel.org/stable/c/43bbadb7e4636dc02f6a283c2a39e6438e6173cd
https://git.kernel.org/stable/c/717b9b4f38703d7f5293059e3a242d16f76fa045
Source Url

Alert History

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0
Date Informations
2025-05-27 02:12:01
  • First insertion