CVEs-PoC/2020/CVE-2020-29372.md

CVE-2020-29372

Description

An issue was discovered in do_madvise in mm/madvise.c in the Linux kernel before 5.6.8. There is a race condition between coredump operations and the IORING_OP_MADVISE implementation, aka CID-bc0c4d1e176e.

POC

Reference

• http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.8
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0c4d1e176eeb614dc8734fc3ace34292771f11

Github

• https://github.com/Live-Hack-CVE/CVE-2020-29372