Executive Summary



This vulnerability is currently undergoing analysis and not all information is available. Please check back soon to view the completed vulnerability summary
Informations
Name CVE-2022-49804 First vendor Publication 2025-05-01
Vendor Cve Last vendor Modification 2025-05-01

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
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Detail

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

s390: avoid using global register for current_stack_pointer

Commit 30de14b1884b ("s390: current_stack_pointer shouldn't be a function") made current_stack_pointer a global register variable like on many other architectures. Unfortunately on s390 it uncovers old gcc bug which is fixed only since gcc-9.1 [gcc commit 3ad7fed1cc87 ("S/390: Fix PR89775. Stackpointer save/restore instructions removed")] and backported to gcc-8.4 and later. Due to this bug gcc versions prior to 8.4 generate broken code which leads to stack corruptions.

Current minimal gcc version required to build the kernel is declared as 5.1. It is not possible to fix all old gcc versions, so work around this problem by avoiding using global register variable for current_stack_pointer.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-49804

Sources (Detail)

https://git.kernel.org/stable/c/a478952a8ac44e32316dc046a063a7dc34825aa6
https://git.kernel.org/stable/c/e3c11025bcd2142a61abe5806b2f86a0e78118df
Source Url

Alert History

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