# CVE-2024-26833: linux: In the Linux kernel, the following vulnerability has been resolved:  drm/amd/display: Fix memory leak in dm_sw_fini()...

CVE-2024-26833 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-26833, released April 17, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-26833
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0023
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 17, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  drm/amd/display: Fix memory leak in dm_sw_fini()  After destroying dmub_srv, the memory associated with it is not freed, causing a memory leak:  unreferenced object 0xffff896302b45800 (size 1024):   comm "(udev-worker)", pid 222, jiffies 4294894636   hex dump (first 32 bytes):     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................   backtrace (crc 6265fd77):     [<ffffffff993495ed>] kmalloc_trace+0x29d/0x340     [<ffffffffc0ea4a94>] dm_dmub_sw_init+0xb4/0x450 [amdgpu]     [<ffffffffc0ea4e55>] dm_sw_init+0x15/0x2b0 [amdgpu]     [<ffffffffc0ba8557>] amdgpu_device_init+0x1417/0x24e0 [amdgpu]     [<ffffffffc0bab285>] amdgpu_driver_load_kms+0x15/0x190 [amdgpu]     [<ffffffffc0ba09c7>] amdgpu_pci_probe+0x187/0x4e0 [amdgpu]     [<ffffffff9968fd1e>] local_pci_probe+0x3e/0x90     [<ffffffff996918a3>] pci_device_probe+0xc3/0x230     [<ffffffff99805872>] really_probe+0xe2/0x480     [<ffffffff99805c98>] __driver_probe_device+0x78/0x160     [<ffffffff99805daf>] driver_probe_device+0x1f/0x90     [<ffffffff9980601e>] __driver_attach+0xce/0x1c0     [<ffffffff99803170>] bus_for_each_dev+0x70/0xc0     [<ffffffff99804822>] bus_add_driver+0x112/0x210     [<ffffffff99807245>] driver_register+0x55/0x100     [<ffffffff990012d1>] do_one_initcall+0x41/0x300  Fix this by freeing dmub_srv after destroying it.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.82-1 | [DEBIAN-CVE-2024-26833](https://patchblox.com/security/data/fix/linux/debian-cve-2024-26833.md) | Apr 17, 2024 |
| Linux | linux Debian 13.5 (trixie) | 6.7.7-1 | [DEBIAN-CVE-2024-26833](https://patchblox.com/security/data/fix/linux/debian-cve-2024-26833.md) | Apr 17, 2024 |
| Linux | linux Debian 14 | 6.7.7-1 | [DEBIAN-CVE-2024-26833](https://patchblox.com/security/data/fix/linux/debian-cve-2024-26833.md) | Apr 17, 2024 |

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