CVE-2022-49489: drm/msm/disp/dpu1: set vbif hw config to NULL to avoid use after memory free during pm runtime resume
First published: Wed Feb 26 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: drm/msm/disp/dpu1: set vbif hw config to NULL to avoid use after memory free during pm runtime resume BUG: Unable to handle kernel paging request at virtual address 006b6b6b6b6b6be3 Call trace: dpu_vbif_init_memtypes+0x40/0xb8 dpu_runtime_resume+0xcc/0x1c0 pm_generic_runtime_resume+0x30/0x44 __genpd_runtime_resume+0x68/0x7c genpd_runtime_resume+0x134/0x258 __rpm_callback+0x98/0x138 rpm_callback+0x30/0x88 rpm_resume+0x36c/0x49c __pm_runtime_resume+0x80/0xb0 dpu_core_irq_uninstall+0x30/0xb0 dpu_irq_uninstall+0x18/0x24 msm_drm_uninit+0xd8/0x16c Patchwork: https://patchwork.freedesktop.org/patch/483255/ [DB: fixed Fixes tag]
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | >=4.19<4.19.247 | |
| Linux Kernel | >=4.20<5.4.198 | |
| Linux Kernel | >=5.5<5.10.121 | |
| Linux Kernel | >=5.11<5.15.46 | |
| Linux Kernel | >=5.16<5.17.14 | |
| Linux Kernel | >=5.18<5.18.3 |
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Reference Links
- https://git.kernel.org/stable/c/aa4cb188988dc6f1b3f4917d4dbc452150a5d871
- https://git.kernel.org/stable/c/ef10d0c68e8608848cd58fca2589685718426607
- https://git.kernel.org/stable/c/134760263f6441741db0b2970e7face6b34b6d1c
- https://git.kernel.org/stable/c/ef4bdaac7cb5416f236613ed9337ff0ea8ee329b
- https://git.kernel.org/stable/c/97ac682b6f7d36be5d934f86c9911066540a68f1
- https://git.kernel.org/stable/c/5b0adf5cbf3b74721e4e4c4e0cadc91b8df8bcc2
- https://git.kernel.org/stable/c/fa5186b279ecf44b14fb435540d2065be91cb1ed
Frequently Asked Questions
What is the severity of CVE-2022-49489?
CVE-2022-49489 is considered to have a high severity due to the potential for a use-after-free vulnerability leading to kernel crashes or exploitation.
How do I fix CVE-2022-49489?
To fix CVE-2022-49489, update your Linux kernel to the latest patched version where this vulnerability has been addressed.
Which versions of the Linux kernel are affected by CVE-2022-49489?
CVE-2022-49489 affects specific versions of the Linux kernel that include the problematic implementation in drm/msm/disp/dpu1.
What symptoms might indicate an exploitation of CVE-2022-49489?
Symptoms of exploitation for CVE-2022-49489 may include unexpected kernel panics or system crashes during PM runtime transitions.
Is CVE-2022-49489 a local or remote vulnerability?
CVE-2022-49489 is primarily a local vulnerability as it requires access to the affected Linux kernel's resources to exploit.
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