CVE-2024-43832 Information

Description

In the Linux kernel the following vulnerability has been resolved:

s390/uv: Don’t call folio_wait_writeback() without a folio reference

folio_wait_writeback() requires that no spinlocks are held and that a folio reference is held as documented. After we dropped the PTL the folio could get freed concurrently. So grab a temporary reference.

Reference

https://git.kernel.org/stable/c/1a1eb2f3fc453dcd52726d13e863938561489cb7 https://git.kernel.org/stable/c/8736604ef53359a718c246087cd21dcec232d2fb https://git.kernel.org/stable/c/b21aba72aadd94bdac275deab021fc84d6c72b16 https://git.kernel.org/stable/c/3f29f6537f54d74e64bac0a390fb2e26da25800d