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CVE-2025-38636

· Published 22/08/2025 16:15 · Modified 22/08/2025 18:08

Labels: CVE-2025-38636 2025-08-22416baaa9-dc9f-4396-8d5f-8c081fb06d67CVE-2025-38636

Essential information

Published
22/08/2025 16:15
Modified
22/08/2025 18:08
Author
Creator
CISA KEV
No
CWE

Description

In the Linux kernel, the following vulnerability has been resolved: rv: Use strings in da monitors tracepoints Using DA monitors tracepoints with KASAN enabled triggers the following warning: BUG: KASAN: global-out-of-bounds in do_trace_event_raw_event_event_da_monitor+0xd6/0x1a0 Read of size 32 at addr ffffffffaada8980 by task ... Call Trace: <TASK> [...] do_trace_event_raw_event_event_da_monitor+0xd6/0x1a0 ? __pfx_do_trace_event_raw_event_event_da_monitor+0x10/0x10 ? trace_event_sncid+0x83/0x200 trace_event_sncid+0x163/0x200 [...] The buggy address belongs to the variable: automaton_snep+0x4e0/0x5e0 This is caused by the tracepoints reading 32 bytes __array instead of __string from the automata definition. Such strings are literals and reading 32 bytes ends up in out of bound memory accesses (e.g. the next automaton's data in this case). The error is harmless as, while printing the string, we stop at the null terminator, but it should still be fixed. Use the __string facilities while defining the tracepoints to avoid reading out of bound memory.

NVD status

Status
Awaiting Analysis — CVE has been marked for Analysis. Normally once in this state the CVE will be analyzed by NVD staff within 24 hours.
Source
416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD
View on NVD

Affected products (CPE)

ProductCPE
linux / linux kernel cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

References