{"timestamp":"2024-04-12T16:35:34.459047Z","id":"CVE-2021-47205","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}

[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/clk/sunxi-ng/ccu-sun4i-a10.c","drivers/clk/sunxi-ng/ccu-sun50i-a100-r.c","drivers/clk/sunxi-ng/ccu-sun50i-a100.c","drivers/clk/sunxi-ng/ccu-sun50i-a64.c","drivers/clk/sunxi-ng/ccu-sun50i-h6-r.c","drivers/clk/sunxi-ng/ccu-sun50i-h6.c","drivers/clk/sunxi-ng/ccu-sun50i-h616.c","drivers/clk/sunxi-ng/ccu-sun5i.c","drivers/clk/sunxi-ng/ccu-sun6i-a31.c","drivers/clk/sunxi-ng/ccu-sun8i-a23.c","drivers/clk/sunxi-ng/ccu-sun8i-a33.c","drivers/clk/sunxi-ng/ccu-sun8i-a83t.c","drivers/clk/sunxi-ng/ccu-sun8i-de2.c","drivers/clk/sunxi-ng/ccu-sun8i-h3.c","drivers/clk/sunxi-ng/ccu-sun8i-r.c","drivers/clk/sunxi-ng/ccu-sun8i-r40.c","drivers/clk/sunxi-ng/ccu-sun8i-v3s.c","drivers/clk/sunxi-ng/ccu-sun9i-a80-de.c","drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c","drivers/clk/sunxi-ng/ccu-sun9i-a80.c","drivers/clk/sunxi-ng/ccu-suniv-f1c100s.c","drivers/clk/sunxi-ng/ccu_common.c","drivers/clk/sunxi-ng/ccu_common.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"c6a0637460c29799f1e63a6a4a65bda22caf4a54","lessThan":"b5dd513daa70ee8f6d281a20bd28485ee9bb7db2","versionType":"git","status":"affected"},{"version":"c6a0637460c29799f1e63a6a4a65bda22caf4a54","lessThan":"9bec2b9c6134052994115d2d3374e96f2ccb9b9d","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/clk/sunxi-ng/ccu-sun4i-a10.c","drivers/clk/sunxi-ng/ccu-sun50i-a100-r.c","drivers/clk/sunxi-ng/ccu-sun50i-a100.c","drivers/clk/sunxi-ng/ccu-sun50i-a64.c","drivers/clk/sunxi-ng/ccu-sun50i-h6-r.c","drivers/clk/sunxi-ng/ccu-sun50i-h6.c","drivers/clk/sunxi-ng/ccu-sun50i-h616.c","drivers/clk/sunxi-ng/ccu-sun5i.c","drivers/clk/sunxi-ng/ccu-sun6i-a31.c","drivers/clk/sunxi-ng/ccu-sun8i-a23.c","drivers/clk/sunxi-ng/ccu-sun8i-a33.c","drivers/clk/sunxi-ng/ccu-sun8i-a83t.c","drivers/clk/sunxi-ng/ccu-sun8i-de2.c","drivers/clk/sunxi-ng/ccu-sun8i-h3.c","drivers/clk/sunxi-ng/ccu-sun8i-r.c","dr

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-401

OR
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (excluding) 5.15.5

CVE: https://git.kernel.org/stable/c/9bec2b9c6134052994115d2d3374e96f2ccb9b9d Types: Mailing List, Patch

CVE: https://git.kernel.org/stable/c/b5dd513daa70ee8f6d281a20bd28485ee9bb7db2 Types: Mailing List, Patch

kernel.org: https://git.kernel.org/stable/c/9bec2b9c6134052994115d2d3374e96f2ccb9b9d Types: Mailing List, Patch

kernel.org: https://git.kernel.org/stable/c/b5dd513daa70ee8f6d281a20bd28485ee9bb7db2 Types: Mailing List, Patch

https://git.kernel.org/stable/c/9bec2b9c6134052994115d2d3374e96f2ccb9b9d

https://git.kernel.org/stable/c/b5dd513daa70ee8f6d281a20bd28485ee9bb7db2

In the Linux kernel, the following vulnerability has been resolved:

clk: sunxi-ng: Unregister clocks/resets when unbinding

Currently, unbinding a CCU driver unmaps the device's MMIO region, while
leaving its clocks/resets and their providers registered. This can cause
a page fault later when some clock operation tries to perform MMIO. Fix
this by separating the CCU initialization from the memory allocation,
and then using a devres callback to unregister the clocks and resets.

This also fixes a memory leak of the `struct ccu_reset`, and uses the
correct owner (the specific platform driver) for the clocks and resets.

Early OF clock providers are never unregistered, and limited error
handling is possible, so they are mostly unchanged. The error reporting
is made more consistent by moving the message inside of_sunxi_ccu_probe.

kernel.org https://git.kernel.org/stable/c/9bec2b9c6134052994115d2d3374e96f2ccb9b9d [No types assigned]

kernel.org https://git.kernel.org/stable/c/b5dd513daa70ee8f6d281a20bd28485ee9bb7db2 [No types assigned]