cve-2021-47471
Vulnerability from cvelistv5
Published
2024-05-22 06:23
Modified
2024-12-19 07:43
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: drm: mxsfb: Fix NULL pointer dereference crash on unload The mxsfb->crtc.funcs may already be NULL when unloading the driver, in which case calling mxsfb_irq_disable() via drm_irq_uninstall() from mxsfb_unload() leads to NULL pointer dereference. Since all we care about is masking the IRQ and mxsfb->base is still valid, just use that to clear and mask the IRQ.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3cfc183052c3dbf8eae57b6c1685dab00ed3db4a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b0e6db0656ddfd8bb57303c2ef61ee1c1cc694a8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f40c2281d2c0674d32ba732fee45222d76495472
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3cfc183052c3dbf8eae57b6c1685dab00ed3db4a
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b0e6db0656ddfd8bb57303c2ef61ee1c1cc694a8
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f40c2281d2c0674d32ba732fee45222d76495472
Impacted products
Vendor Product Version
Linux Linux Version: ae1ed0093281939b80664a687689f12436c0e874
Version: ae1ed0093281939b80664a687689f12436c0e874
Version: ae1ed0093281939b80664a687689f12436c0e874
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   Linux Linux Version: 5.10
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