CVE-2021-47006
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-47006
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47006.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-47006
- Related
- Published
- 2024-02-28T09:15:38Z
- Modified
- 2024-11-07T16:35:03Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ARM: 9064/1: hwbreakpoint: Do not directly check the event's overflowhandler hook
The commit 1879445dfa7b ("perf/core: Set event's default ::overflowhandler()") set a default event->overflowhandler in perfeventalloc(), and replace the check event->overflowhandler with isdefaultoverflowhandler(), but one is missing.
Currently, the bp->overflowhandler can not be NULL. As a result, enablesingle_step() is always not invoked.
Comments from Zhen Lei:
https://patchwork.kernel.org/project/linux-arm-kernel/patch/20210207105934.2001-1-thunder.leizhen@huawei.com/
- References
-
- https://git.kernel.org/stable/c/3ed8832aeaa9a37b0fc386bb72ff604352567c80
- https://git.kernel.org/stable/c/555a70f7fff03bd669123487905c47ae27dbdaac
- https://git.kernel.org/stable/c/630146203108bf6b8934eec0dfdb3e46dcb917de
- https://git.kernel.org/stable/c/7eeacc6728c5478e3c01bc82a1f08958eaa12366
- https://git.kernel.org/stable/c/a506bd5756290821a4314f502b4bafc2afcf5260
- https://git.kernel.org/stable/c/a9938d6d78a238d6ab8de57a4d3dcf77adceb9bb
- https://git.kernel.org/stable/c/dabe299425b1a53a69461fed7ac8922ea6733a25
- https://git.kernel.org/stable/c/ed1f67465327cec4457bb988775245b199da86e6
- https://security-tracker.debian.org/tracker/CVE-2021-47006
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
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