CVE-2021-47006
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ARM: 9064/1: hw_breakpoint: Do not directly check the event's overflow_handler hook
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/
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1879445dfa7bbd6fe21b09c5cc72f4934798afed | affected | git | 555a70f7fff03bd669123487905c47ae27dbdaac | Unavailable | None listed |
| 1879445dfa7bbd6fe21b09c5cc72f4934798afed | affected | git | ed1f67465327cec4457bb988775245b199da86e6 | Unavailable | None listed |
| 1879445dfa7bbd6fe21b09c5cc72f4934798afed | affected | git | a9938d6d78a238d6ab8de57a4d3dcf77adceb9bb | Unavailable | None listed |
| 1879445dfa7bbd6fe21b09c5cc72f4934798afed | affected | git | 3ed8832aeaa9a37b0fc386bb72ff604352567c80 | Unavailable | None listed |
| 1879445dfa7bbd6fe21b09c5cc72f4934798afed | affected | git | 630146203108bf6b8934eec0dfdb3e46dcb917de | Unavailable | None listed |
| 1879445dfa7bbd6fe21b09c5cc72f4934798afed | affected | git | 7eeacc6728c5478e3c01bc82a1f08958eaa12366 | Unavailable | None listed |
| 1879445dfa7bbd6fe21b09c5cc72f4934798afed | affected | git | dabe299425b1a53a69461fed7ac8922ea6733a25 | Unavailable | None listed |
| 1879445dfa7bbd6fe21b09c5cc72f4934798afed | affected | git | a506bd5756290821a4314f502b4bafc2afcf5260 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.7 | Unavailable | None listed |
| 4.9.269 | unaffected | semver | Unavailable | 4.9.* | None listed |
| 4.14.233 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.191 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.120 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.38 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.11.22 | unaffected | semver | Unavailable | 5.11.* | None listed |
| 5.12.5 | unaffected | semver | Unavailable | 5.12.* | None listed |
| 5.13 | unaffected | original_commit_for_fix | Unavailable | * | None listed |