CVE-2024-26833 json
drm/amd/display: Fix memory leak in dm_sw_fini()
published 2024-04-17 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-24095
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 13%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Linux Linux 5.10.211, 5.15.150, 6.1.80, 6.6.19, 6.7.7, 6.8
- linux Debian 12 6.1.82-1
- linux Debian 14, Debian 13 6.7.7-1
debian advisories DEBIAN-CVE-2024-26833
- linux Ubuntu 22.04 LTS 5.15.0-112.122
- linux-aws Ubuntu 22.04 LTS 5.15.0-1063.69
- linux-gcp Ubuntu 22.04 LTS 5.15.0-1062.70
- linux-gke Ubuntu 22.04 LTS 5.15.0-1060.66
- linux-ibm Ubuntu 22.04 LTS 5.15.0-1056.59
- linux-kvm Ubuntu 22.04 LTS 5.15.0-1060.65
- linux-azure Ubuntu 22.04 LTS 5.15.0-1066.75
- linux-gkeop Ubuntu 22.04 LTS 5.15.0-1046.53
ubuntu advisories UBUNTU-CVE-2024-26833
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- kernel-rt SLE Micro 5.5, Real Time Module 15 SP5, openSUSE Leap 15.5 5.14.21-150500.13.52.1
- kernel-syms-rt Real Time Module 15 SP5, openSUSE Leap 15.5 5.14.21-150500.13.52.1
- kernel-rt_debug Real Time Module 15 SP5, openSUSE Leap 15.5 5.14.21-150500.13.52.1
- kernel-source-rt SLE Micro 5.5, Real Time Module 15 SP5, openSUSE Leap 15.5 5.14.21-150500.13.52.1
- dtb-aarch64 openSUSE Leap 15.5 5.14.21-150500.55.62.1
- kernel-64kb SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.62.2
- kernel-syms SLE Module for Development Tools 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.62.1
- kernel-obs-qa openSUSE Leap 15.5 5.14.21-150500.55.62.1
suse advisories SUSE-SU-2024:1663-1SUSE-SU-2024:1659-1SUSE-SU-2024:1644-1
- git.kernel.org/stable/c/b49b022f7dfce85eb77d0d987008fde5c01d7857 commit
- git.kernel.org/stable/c/33f649f1b1cea39ed360e6c12bba4fac83118e6e commit
- git.kernel.org/stable/c/58168005337eabef345a872be3f87d0215ff3b30 commit
- git.kernel.org/stable/c/10c6b90e975358c17856a578419dc449887899c2 commit
- git.kernel.org/stable/c/541e79265ea7e339a7c4a462feafe9f8f996e04b commit
- git.kernel.org/stable/c/bae67893578d608e35691dcdfa90c4957debf1d3 commit
- lists.debian.org/debian-lts-announce/2024/06/msg00017.html patch
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2024-26833 updated cvss 4.4
kernel: drm/amd/display: Fix memory leak in dm_sw_fini()
-
Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 morenot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Linux Linux
Classification
- Weakness
-
- CWE-401 Missing Release of Memory after Effective Lifetime
- Technology feeds
References
-
git.kernel.org
/stable/c/b49b022f7dfce85eb77d0d987008fde5c01d7857
patch
-
git.kernel.org
/stable/c/33f649f1b1cea39ed360e6c12bba4fac83118e6e
patch
-
git.kernel.org
/stable/c/58168005337eabef345a872be3f87d0215ff3b30
patch
-
git.kernel.org
/stable/c/10c6b90e975358c17856a578419dc449887899c2
patch
-
git.kernel.org
/stable/c/541e79265ea7e339a7c4a462feafe9f8f996e04b
patch
-
git.kernel.org
/stable/c/bae67893578d608e35691dcdfa90c4957debf1d3
patch
-
lists.debian.org
/debian-lts-announce/2024/06/msg00017.html
patch
Sources
- CVE List CVE-2024-26833
- NVD CVE-2024-26833
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.