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Affected Component
Analysis
patch
Exploitable
Name
CVE-2026-56288
Description
GNU patch is vulnerable to a NULL pointer dereference when processing a specially crafted unified-diff patch file. Improper handling of consecutive end-of-file newline markers can corrupt internal hunk (single block of changes in diff) data structures, causing the application to pass a NULL pointer to fwrite() during patch processing.
An attacker can trigger this condition with a malicious patch file, causing the utility to crash and resulting in a denial of service.
This issue has been fixed in the commit e6d6a4e021660679d7fc9150f981d4920f722313
CWEs
Published Date
Updated Date
Workaround
-
Analysis#
Vulnerability Ratings#
4.6
CVSSv4
5.5
CVSSv31
NaN
other
Others affected components#
Resolved with patches#
patch (yocto:master)
#
Title
Author
Resolve
1
Avoid null pointer derefence with bad hunks
Paul Eggert <eggert@cs.ucla.edu>
CVE-2026-56288