CVE-2026-72309

tracing/remotes: Fix leak in trace_remote_alloc_buffer() error path

N/A
Published: August 15, 2026 at 05:55 AM UTC
Updated: August 17, 2026 at 06:18 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: tracing/remotes: Fix leak in trace_remote_alloc_buffer() error path If page allocation fails in trace_remote_alloc_buffer(), desc->nr_cpus is not yet incremented for the current CPU. As a consequence, on error, half-allocated rb_desc will not be freed in trace_remote_free_buffer(). Increment desc->nr_cpus as soon as the first allocation for the current CPU has succeeded.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

7.1 ≤ v < 7.1.57.1 ≤ v < 7.27.196e43537af5461b26f50904c6055046ba65d742f
Vendor states this is fixed in 81a7b7ddb07efdd8cf30eac6def18b9289b8de1e (fixed)
Vendor states this is fixed in ec082d0b978b5fb4c11205ccce63587ac94c74e1 (fixed)
Vendor states this is fixed in 7.1 (unaffected)
Vendor states this is fixed in 7.1.5 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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