CVE-2021-47544

In the Linux kernel, the following vulnerability has been resolved: tcp: fix page frag corruption on page fault Steffen reported a TCP stream corruption for HTTP requests served by the apache web-server using a cifs mount-point and memory mapping the relevant file. The root cause is quite similar...

CVE-2021-47544 tcp: fix page frag corruption on page fault

In the Linux kernel, the following vulnerability has been resolved: tcp: fix page frag corruption on page fault Steffen reported a TCP stream corruption for HTTP requests served by the apache web-server using a cifs mount-point and memory mapping the relevant file. The root cause is quite similar...

CVE-2021-47544

CVE-2021-47544 affects the Linux kernel TCP path, specifically the page frag allocation in sk_page_frag() during a page fault on an mmapped user buffer from CIFS. The nested memory access triggers page-frag modifications that corrupt the TCP stream, observed in HTTP transfers served by Apache ove...