CVE-2024-53218 f2fs: fix race in concurrent f2fs_stop_gc_thread

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix race in concurrent f2fsstopgcthread In my test case, concurrent calls to f2fs shutdown report the following stack trace: Oops: general protection fault, probably for non-canonical address 0xc6cfff63bb5513fc: 0000 1...

CVE-2024-47691

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid use-after-free in f2fsstopgcthread syzbot reports a f2fs bug as below: dumpstack lib/dumpstack.c:88 inline dumpstacklvl+0x241/0x360 lib/dumpstack.c:114 printreport+0xe8/0x550 mm/kasan/report.c:491...

CVE-2024-47691 f2fs: fix to avoid use-after-free in f2fs_stop_gc_thread()

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid use-after-free in f2fsstopgcthread syzbot reports a f2fs bug as below: dumpstack lib/dumpstack.c:88 inline dumpstacklvl+0x241/0x360 lib/dumpstack.c:114 printreport+0xe8/0x550 mm/kasan/report.c:491...

CVE-2024-47691

CVE-2024-47691 affects the Linux kernel’s F2FS subsystem, tied to a race condition in f2fs_stop_gc_thread() that can cause a use-after-free in sbi->gc_th. The issue can occur during remount/shutdown scenarios where gc_th is freed, and a guard is needed via sb->s_umount semaphore. The descri...