CVE-2026-64050
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/msm/dpu: don't mix devm and drmm functions
Mixing devm and drmm functions will result in a use-after-free on msm driver teardown if userspace keeps a reference on the drm device: The WB connector data will be destroyed because of the use of devm_kzalloc()), while the usersoace still can try interacting with the WB connector (which uses drmm_ functions).
Change dpu_writeback_init() to use drmm_.
Patchwork: https://patchwork.freedesktop.org/patch/722656/
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 0b37ac63fc9db7779168ad18d7e6e8ab9df6a40b < ff58e5ef1b46ce614af048d2d04986df05ffab90 | affected |
| Linux | Linux | 0b37ac63fc9db7779168ad18d7e6e8ab9df6a40b < 95048a12f48c627bc2ccc4d84f87640630ba2bdb | affected |
| Linux | Linux | 0b37ac63fc9db7779168ad18d7e6e8ab9df6a40b < c0c70a11365cba7fba25a77463582bcec0f7846e | affected |
| Linux | Linux | 6.18 | affected |
| Linux | Linux | 0 < 6.18 | unaffected |
| Linux | Linux | 6.18.34 <= 6.18.* | unaffected |
| Linux | Linux | 7.0.11 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/ff58e5ef1b46ce614af048d2d04986df05ffab90
- https://git.kernel.org/stable/c/95048a12f48c627bc2ccc4d84f87640630ba2bdb
- https://git.kernel.org/stable/c/c0c70a11365cba7fba25a77463582bcec0f7846e
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