CVE-2021-47006

linux: In the Linux kernel, the following vulnerability has been resolved: ARM: 9064/1: hw_breakpoint: Do not directly chec...

CVE-2021-47006 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47006, released February 28, 2024. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.5
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0025
16th percentile

In the Linux kernel, the following vulnerability has been resolved: ARM: 9064/1: hw_breakpoint: Do not directly check the event's overflow_handler hook The commit 1879445dfa7b ("perf/core: Set event's default ::overflow_handler()") set a default event->overflow_handler in perf_event_alloc(), and replace the check event->overflow_handler with is_default_overflow_handler(), but one is missing. Currently, the bp->overflow_handler can not be NULL. As a result, enable_single_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/

Where it's fixed

ProductFixed inFixReleased
Linux
linux · Debian 12.15 (bookworm) 5.10.38-1 DEBIAN-CVE-2021-47006 Feb 28, 2024
linux · Debian 13.5 (trixie) 5.10.38-1 DEBIAN-CVE-2021-47006 Feb 28, 2024
linux · Debian 14 5.10.38-1 DEBIAN-CVE-2021-47006 Feb 28, 2024

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