7 matches found
Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1
In the Linux kernel, the following vulnerability has been resolved: perf: RISC-V: Remove PERFHESSTOPPED flag checking in riscvpmustart Since commit 096b52fd2bb4 "perf: RISC-V: throttle perf events", the perfsampleeventtook function was added to report time spent in overflow interrupts. If the...
CVE-2023-53583
In the Linux kernel, the following vulnerability has been resolved: perf: RISC-V: Remove PERFHESSTOPPED flag checking in riscvpmustart Since commit 096b52fd2bb4 "perf: RISC-V: throttle perf events" the perfsampleeventtook function was added to report time spent in overflow interrupts. If the...
CVE-2023-53583
CVE-2023-53583 concerns the Linux kernel RISC‑V PMU driver. The issue arises from the perf subsystem: after perf_event_overflow(), the RISC‑V PMU driver did not update PERF_HES_STOPPED, and the unthrottle path could trigger riscv_pmu_start(), emitting a WARN_ON_ONCE. The fixed change removes the ...
CVE-2025-39821
In the Linux kernel, the following vulnerability has been resolved: perf: Avoid undefined behavior from stopping/starting inactive events Calling pmu-start/stop on perf events in PERFEVENTSTATEOFF can leave event-hw.idx at -1. When PMU drivers later attempt to use this negative index as a shift...
CVE-2025-39821
CVE-2025-39821 (Linux kernel perf - UBSAN risk) The issue is a logic flaw in perf event throttling where a group’s disabled member in PERF_EVENT_STATE_OFF could be throttle-started/stoppped, causing PMU drivers to receive an event with hw.idx = -1. This negative index is used as a shift exponent ...
CVE-2025-39821 perf: Avoid undefined behavior from stopping/starting inactive events
In the Linux kernel, the following vulnerability has been resolved: perf: Avoid undefined behavior from stopping/starting inactive events Calling pmu-start/stop on perf events in PERFEVENTSTATEOFF can leave event-hw.idx at -1. When PMU drivers later attempt to use this negative index as a shift...
CVE-2025-39821 perf: Avoid undefined behavior from stopping/starting inactive events
In the Linux kernel, the following vulnerability has been resolved: perf: Avoid undefined behavior from stopping/starting inactive events Calling pmu-start/stop on perf events in PERFEVENTSTATEOFF can leave event-hw.idx at -1. When PMU drivers later attempt to use this negative index as a shift...