CVE-2023-54121

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix incorrect splitting in btrfsdropextentmaprange In production we were seeing a variety of WARNON's in the extentmap code, specifically in btrfsdropextentmaprange when we have to call addextentmapping for our second spli...

CVE-2022-50770

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix memory leak in ocfs2mountvolume There is a memory leak reported by kmemleak: unreferenced object 0xffff88810cc65e60 size 32: comm "mount.ocfs2", pid 23753, jiffies 4302528942 age 34735.105s hex dump first 32 bytes: 10 ...

UBUNTU-CVE-2023-54121

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix incorrect splitting in btrfsdropextentmaprange In production we were seeing a variety of WARNON's in the extentmap code, specifically in btrfsdropextentmaprange when we have to call addextentmapping for our second spli...

CVE-2022-50770

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix memory leak in ocfs2mountvolume There is a memory leak reported by kmemleak: unreferenced object 0xffff88810cc65e60 size 32: comm "mount.ocfs2", pid 23753, jiffies 4302528942 age 34735.105s hex dump first 32 bytes: 10 ...

CVE-2023-54121

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix incorrect splitting in btrfsdropextentmaprange In production we were seeing a variety of WARNON's in the extentmap code, specifically in btrfsdropextentmaprange when we have to call addextentmapping for our second spli...

UBUNTU-CVE-2022-50770

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix memory leak in ocfs2mountvolume There is a memory leak reported by kmemleak: unreferenced object 0xffff88810cc65e60 size 32: comm "mount.ocfs2", pid 23753, jiffies 4302528942 age 34735.105s hex dump first 32 bytes: 10 ...

CVE-2023-54121 btrfs: fix incorrect splitting in btrfs_drop_extent_map_range

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix incorrect splitting in btrfsdropextentmaprange In production we were seeing a variety of WARNON's in the extentmap code, specifically in btrfsdropextentmaprange when we have to call addextentmapping for our second spli...

CVE-2023-54121 btrfs: fix incorrect splitting in btrfs_drop_extent_map_range

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix incorrect splitting in btrfsdropextentmaprange In production we were seeing a variety of WARNON's in the extentmap code, specifically in btrfsdropextentmaprange when we have to call addextentmapping for our second spli...

CVE-2022-50770

Affected software: Linux kernel ocfs2 filesystem code. Issue: memory leak in ocfs2_mount_volume() related to replay_map not freed on error paths, and replay_map memory not freed if d_make_root() fails in ocfs2_fill_super(). Consequence: potential memory leak during mount/recovery of OCFS2 volumes...

CVE-2022-50770 ocfs2: fix memory leak in ocfs2_mount_volume()

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix memory leak in ocfs2mountvolume There is a memory leak reported by kmemleak: unreferenced object 0xffff88810cc65e60 size 32: comm "mount.ocfs2", pid 23753, jiffies 4302528942 age 34735.105s hex dump first 32 bytes: 10 ...

CVE-2022-50770 ocfs2: fix memory leak in ocfs2_mount_volume()

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix memory leak in ocfs2mountvolume There is a memory leak reported by kmemleak: unreferenced object 0xffff88810cc65e60 size 32: comm "mount.ocfs2", pid 23753, jiffies 4302528942 age 34735.105s hex dump first 32 bytes: 10 ...

EUVD-2025-205099

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix exclusive map memory leak When exclproghash is 0 and exclproghashsize is non-zero, the map also needs to be freed. Otherwise, the map memory will not be reclaimed, just like the memory leak problem reported by syzbot 1...

CVE-2023-54033

In the Linux kernel, the following vulnerability has been resolved: bpf: fix a memory leak in the LRU and LRUPERCPU hash maps The LRU and LRUPERCPU maps allocate a new element on update before locking the target hash table bucket. Right after that the maps try to lock the bucket. If this fails,...

CVE-2025-68355

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix exclusive map memory leak When exclproghash is 0 and exclproghashsize is non-zero, the map also needs to be freed. Otherwise, the map memory will not be reclaimed, just like the memory leak problem reported by syzbot 1...

UBUNTU-CVE-2025-68355

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix exclusive map memory leak When exclproghash is 0 and exclproghashsize is non-zero, the map also needs to be freed. Otherwise, the map memory will not be reclaimed, just like the memory leak problem reported by syzbot 1...

CVE-2025-68378 bpf: Fix stackmap overflow check in __bpf_get_stackid()

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix stackmap overflow check in bpfgetstackid Syzkaller reported a KASAN slab-out-of-bounds write in bpfgetstackid when copying stack trace data. The issue occurs when the perf trace contains more stack entries than the stack...

CVE-2025-68355 bpf: Fix exclusive map memory leak

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix exclusive map memory leak When exclproghash is 0 and exclproghashsize is non-zero, the map also needs to be freed. Otherwise, the map memory will not be reclaimed, just like the memory leak problem reported by syzbot 1...

CVE-2025-68355

Summary. CVE-2025-68355 affects the Linux kernel BPF map handling. When excl_prog_hash is 0 and excl_prog_hash_size is non-zero, the kernel fails to free the map memory, causing a memory leak as reported by syzbot. The issue resides in kernel/bpf/syscall.c during map creation as shown by the back...

Linux Distros Unpatched Vulnerability : CVE-2023-54121

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - btrfs: fix incorrect splitting in btrfsdropextentmaprange In production we were seeing a variety of WARNON's in the extentmap code, specifically in...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the BPF LRU hash map not freeing allocated elements in the event of a bucket lock failure, potentially leadi...