# CVE-2024-50165: linux: In the Linux kernel, the following vulnerability has been resolved:  bpf: Preserve param->string when parsing mount o...

CVE-2024-50165 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-50165, released November 7, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-50165
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0020
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 7, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  bpf: Preserve param->string when parsing mount options  In bpf_parse_param(), keep the value of param->string intact so it can be freed later. Otherwise, the kmalloc area pointed to by param->string will be leaked as shown below:  unreferenced object 0xffff888118c46d20 (size 8):   comm "new_name", pid 12109, jiffies 4295580214   hex dump (first 8 bytes):     61 6e 79 00 38 c9 5c 7e                          any.8.\~   backtrace (crc e1b7f876):     [<00000000c6848ac7>] kmemleak_alloc+0x4b/0x80     [<00000000de9f7d00>] __kmalloc_node_track_caller_noprof+0x36e/0x4a0     [<000000003e29b886>] memdup_user+0x32/0xa0     [<0000000007248326>] strndup_user+0x46/0x60     [<0000000035b3dd29>] __x64_sys_fsconfig+0x368/0x3d0     [<0000000018657927>] x64_sys_call+0xff/0x9f0     [<00000000c0cabc95>] do_syscall_64+0x3b/0xc0     [<000000002f331597>] entry_SYSCALL_64_after_hwframe+0x4b/0x53

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.11.6-1 | [DEBIAN-CVE-2024-50165](https://patchblox.com/security/data/fix/linux/debian-cve-2024-50165.md) | Nov 7, 2024 |
| Linux | linux Debian 14 | 6.11.6-1 | [DEBIAN-CVE-2024-50165](https://patchblox.com/security/data/fix/linux/debian-cve-2024-50165.md) | Nov 7, 2024 |

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