# CVE-2024-50132: linux: In the Linux kernel, the following vulnerability has been resolved:  tracing/probes: Fix MAX_TRACE_ARGS limit handlin...

CVE-2024-50132 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-50132, released November 5, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-50132
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0022
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 5, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  tracing/probes: Fix MAX_TRACE_ARGS limit handling  When creating a trace_probe we would set nr_args prior to truncating the arguments to MAX_TRACE_ARGS. However, we would only initialize arguments up to the limit.  This caused invalid memory access when attempting to set up probes with more than 128 fetchargs.    BUG: kernel NULL pointer dereference, address: 0000000000000020   #PF: supervisor read access in kernel mode   #PF: error_code(0x0000) - not-present page   PGD 0 P4D 0   Oops: Oops: 0000 [#1] PREEMPT SMP PTI   CPU: 0 UID: 0 PID: 1769 Comm: cat Not tainted 6.11.0-rc7+ #8   Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-1.fc39 04/01/2014   RIP: 0010:__set_print_fmt+0x134/0x330  Resolve the issue by applying the MAX_TRACE_ARGS limit earlier. Return an error when there are too many arguments instead of silently truncating.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.11.6-1 | [DEBIAN-CVE-2024-50132](https://patchblox.com/security/data/fix/linux/debian-cve-2024-50132.md) | Nov 5, 2024 |
| Linux | linux Debian 14 | 6.11.6-1 | [DEBIAN-CVE-2024-50132](https://patchblox.com/security/data/fix/linux/debian-cve-2024-50132.md) | Nov 5, 2024 |

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