CVE-2025-38636rv: Use strings in da monitors tracepoints
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.1 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 21, 2026
- First seen by InfoSec Signals
- Oct 21, 2026
Affected products
Linux Linux linux:linux (from the name) | from 792575348ff70e05c6040d02fce38e949ef92c37 before dcae71222c8b9e5b5dd88a2d67347dedf10e68c6; 792575348ff70e05c6040d02fce38e949ef92c37 builds before 665ca03e93cee01baadc7b5eaee21b9d892e0dab; 792575348ff70e05c6040d02fce38e949ef92c37 builds before 0ebc70d973ce7a81826b5c4f55f743e07f5864d9; 792575348ff70e05c6040d02fce38e949ef92c37 builds before 7f904ff6e58d398c4336f3c19c42b338324451f7 | CNA record |
linux linux_kernel linux:linux_kernel | from 6.0 before 6.16.1 | NVD |
References
- https://git.kernel.org/stable/c/dcae71222c8b9e5b5dd88a2d67347dedf10e68c6
- https://git.kernel.org/stable/c/665ca03e93cee01baadc7b5eaee21b9d892e0dab
- https://git.kernel.org/stable/c/0ebc70d973ce7a81826b5c4f55f743e07f5864d9patch
- https://git.kernel.org/stable/c/7f904ff6e58d398c4336f3c19c42b338324451f7patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.