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CVE-2020-29374

Published: Nov 28, 2020

Modified: Aug 4, 2024

PUBLISHED

Description

An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka CID-17839856fd58.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

https://bugs.chromium.org/p/project-zero/issues/detail?id=2045

x_refsource_MISC

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3

x_refsource_MISC

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17839856fd588f4ab6b789f482ed3ffd7c403e1f

x_refsource_MISC

https://security.netapp.com/advisory/ntap-20210115-0002/

x_refsource_CONFIRM

http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html

x_refsource_MISC

[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update

mailing-list

x_refsource_MLIST

[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update

mailing-list

x_refsource_MLIST

[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update

mailing-list

x_refsource_MLIST

vendor-advisory

x_refsource_DEBIAN

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