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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 23.10 | noarch | linux | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 14.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws | < any | UNKNOWN |
git.kernel.org/linus/3cfc183052c3dbf8eae57b6c1685dab00ed3db4a (5.15-rc7)
git.kernel.org/stable/c/3cfc183052c3dbf8eae57b6c1685dab00ed3db4a
git.kernel.org/stable/c/b0e6db0656ddfd8bb57303c2ef61ee1c1cc694a8
git.kernel.org/stable/c/f40c2281d2c0674d32ba732fee45222d76495472
launchpad.net/bugs/cve/CVE-2021-47471
nvd.nist.gov/vuln/detail/CVE-2021-47471
security-tracker.debian.org/tracker/CVE-2021-47471
www.cve.org/CVERecord?id=CVE-2021-47471