CVE-2022-50012
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-50012
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50012.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-50012
- Related
- Published
- 2025-06-18T11:15:29Z
- Modified
- 2025-06-18T16:47:19.415999Z
- Downstream
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
powerpc/64: Init jump labels before parseearlyparam()
On 64-bit, calling jumplabelinit() in setupfeaturekeys() is too late because static keys may be used in subroutines of parseearlyparam() which is again subroutine of earlyinitdevtree().
For example booting with "threadirqs":
statickeyenablecpuslocked(): static key '0xc000000002953260' used before call to jumplabelinit() WARNING: CPU: 0 PID: 0 at kernel/jumplabel.c:166 statickeyenablecpuslocked+0xfc/0x120 ... NIP statickeyenablecpuslocked+0xfc/0x120 LR statickeyenablecpuslocked+0xf8/0x120 Call Trace: statickeyenablecpuslocked+0xf8/0x120 (unreliable) statickeyenable+0x30/0x50 setupforcedirqthreads+0x28/0x40 doearlyparam+0xa0/0x108 parseargs+0x290/0x4e0 parseearlyoptions+0x48/0x5c parseearlyparam+0x58/0x84 earlyinitdevtree+0xd4/0x518 earlysetup+0xb4/0x214
So call jumplabelinit() just before parseearlyparam() in earlyinitdevtree().
[mpe: Add call trace to change log and minor wording edits.]
- References
-
- https://git.kernel.org/stable/c/4bb1188e2b1ed98fa2b618cc0628ccba63c6c80f
- https://git.kernel.org/stable/c/5e14b04c8459afbeea1eeb74e81af86d7b196a4d
- https://git.kernel.org/stable/c/8992141cb88f1d99fd11580f4423634700a99240
- https://git.kernel.org/stable/c/8f9357313cdcadb0a311b44c29d4eaccc7fa632f
- https://git.kernel.org/stable/c/c4ced9fd10073adc854919976b88ad6004271119
- https://git.kernel.org/stable/c/ca829e05d3d4f728810cc5e4b468d9ebc7745eb3
- https://git.kernel.org/stable/c/dac28dff90849af4200b8269fcdc84cdc12fa46c
- https://git.kernel.org/stable/c/e3c9e9452a8ea12d335b1e59b2c72e1b99c699b8
- https://security-tracker.debian.org/tracker/CVE-2022-50012
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed5.10.140-1
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source