CVE-2006-5173
Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags...
Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags when creating new threads, which allows local users to cause a denial of service (process crash), as demonstrated using a process that sets the Alignment Check flag (EFLAGS 0x40000), which triggers a SIGBUS in other processes that have an unaligned access.
Exploit likelihood
What each source reports
NVD Score used
Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags when creating new threads, which allows local users to cause a denial of service (process crash), as demonstrated using a process that sets the Alignment Check flag (EFLAGS 0x40000), which triggers a SIGBUS in other processes that have an unaligned access.
- Record
CVE-2006-5173- CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags when creating new threads, which allows local users to cause a denial of service (process crash), as demonstrated using a process that sets the Alignment Check flag (EFLAGS 0x40000), which triggers a SIGBUS in other processes that have an unaligned access.
- Record
CVE-2006-5173- Updated
- 2026-11-02
EUVDEUVD-2006-5158 No score
Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags when creating new threads, which allows local users to cause a denial of service (process crash), as demonstrated using a process that sets the Alignment Check flag (EFLAGS 0x40000), which triggers a SIGBUS in other processes that have an unaligned access.
- Record
EUVD-2006-5158- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-pm7g-vxcv-89q8 No score
Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags...
Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags when creating new threads, which allows local users to cause a denial of service (process crash), as demonstrated using a process that sets the Alignment Check flag (EFLAGS 0x40000), which triggers a SIGBUS in other processes that have an unaligned access.
- Record
GHSA-pm7g-vxcv-89q8- Updated
- 2026-11-02
OSVBELL-CVE-2006-5173
CVE-2006-5173 does not affect BellSoft software
- Record
BELL-CVE-2006-5173- CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2006-5173 is a low vulnerability (CVSS 2.1) in Linux Kernel, published October 17, 2006. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.43%, the 38th percentile. No source names a fixed version.
References
novell.com/linux/security/advisories/2006_79_kernel.html
secunia.com/advisories/23361
securityfocus.com/bid/21851
kernel.org/git?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=47a5c6fa0e204a2b63309c648bb2fde36836c826
Show 9 moreShow less
mandriva.com/security/advisories?name=MDKSA-2007:002
ubuntu.com/usn/usn-395-1
nvd.nist.gov/vuln/detail/CVE-2006-5173
github.com/advisories/GHSA-pm7g-vxcv-89q8
docs.bell-sw.com/security/cves/CVE-2006-5173