CVE-2026-31702 f2fs: fix use-after-free of sbi in f2fs_compress_write_end_io()

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix use-after-free of sbi in f2fscompresswriteendio In f2fscompresswriteendio, decpagecountsbi, type can bring the F2FSWBCPDATA counter to zero, unblocking f2fswaitonallpages in f2fsputsuper on a concurrent unmount CPU. The...

CVE-2026-31702

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix use-after-free of sbi in f2fscompresswriteendio In f2fscompresswriteendio, decpagecountsbi, type can bring the F2FSWBCPDATA counter to zero, unblocking f2fswaitonallpages in f2fsputsuper on a concurrent unmount CPU. The...

CVE-2026-31702 f2fs: fix use-after-free of sbi in f2fs_compress_write_end_io()

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix use-after-free of sbi in f2fscompresswriteendio In f2fscompresswriteendio, decpagecountsbi, type can bring the F2FSWBCPDATA counter to zero, unblocking f2fswaitonallpages in f2fsputsuper on a concurrent unmount CPU. The...

PT-2026-36332

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the f2fs compress write end io function. The dec page countsbi, type function can reduce the F2FS WB CP DATA counter to zero, which may unblock f2fs wait...