init/main.c: Fix potential static_command_line memory overflow
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 5.10.216, 5.15.157, 6.1.88, 6.6.29, 6.8.8
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
In the Linux kernel, the following vulnerability has been resolved: init/main.c: Fix potential static_command_line memory overflow We allocate memory of size 'xlen + strlen(boot_command_line) + 1' for static_command_line, but the strings copied into static_command_line are extra_command_line and command_line, rather than extra_command_line and boot_command_line. When strlen(command_line) > strlen(boot_command_line), static_command_line will overflow. This patch just recovers strlen(command_line) which was miss-consolidated with strlen(boot_command_line) in the commit f5c7310ac73e ("init/main: add checks for the return value of memblock_alloc*()")
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
From f5c7310ac73ea270e3a1acdb73d1b4817f11fd67 · fixed in 2ef607ea103616aec0289f1b65d103d499fa903a; From f5c7310ac73ea270e3a1acdb73d1b4817f11fd67 · fixed in 0dc727a4e05400205358a22c3d01ccad2c8e1fe4; From f5c7310ac73ea270e3a1acdb73d1b4817f11fd67 · fixed in 76c2f4d426a5358fced5d5990744d46f10a4ccea; From f5c7310ac73ea270e3a1acdb73d1b4817f11fd67 · fixed in 81cf85ae4f2dd5fa3e43021782aa72c4c85558e8; From f5c7310ac73ea270e3a1acdb73d1b4817f11fd67 · fixed in 936a02b5a9630c5beb0353c3085cc49d86c57034; From f5c7310ac73ea270e3a1acdb73d1b4817f11fd67 · fixed in 46dad3c1e57897ab9228332f03e1c14798d2d3b9
- Linux Linux
5.1
- KernelLinux
From 5.1.0 · fixed in 5.10.216; From 5.11.0 · fixed in 5.15.157; From 5.16.0 · fixed in 6.1.88; From 6.2.0 · fixed in 6.6.29; From 6.7.0 · fixed in 6.8.8