Azure Linux 3.0 Security Update: kernel (CVE-2024-49868)

The version of kernel installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-49868 advisory. - In the Linux kernel, the following vulnerability has been resolved: btrfs: fix a NULL pointer dereference wh...

CVE-2025-21679

In the Linux kernel, the following vulnerability has been resolved: btrfs: add the missing error handling inside getcanonicaldevpath Inside function getcanonicaldevpath, we call dpath to get the final device path. But dpath can return error, and in that case the next strscpy call will trigger an...

DEBIAN-CVE-2025-21679

In the Linux kernel, the following vulnerability has been resolved: btrfs: add the missing error handling inside getcanonicaldevpath Inside function getcanonicaldevpath, we call dpath to get the final device path. But dpath can return error, and in that case the next strscpy call will trigger an...

CVE-2025-21679

CVE-2025-21679—Linux kernel (btrfs): The issue arises in get_canonical_dev_path() where d_path()’s possible error is not handled, causing an invalid memory access on the subsequent strscpy() call. The patch reintroduces proper error handling for d_path() to prevent the memory access, addressing t...

CVE-2025-21679 btrfs: add the missing error handling inside get_canonical_dev_path

In the Linux kernel, the following vulnerability has been resolved: btrfs: add the missing error handling inside getcanonicaldevpath Inside function getcanonicaldevpath, we call dpath to get the final device path. But dpath can return error, and in that case the next strscpy call will trigger an...

CVE-2025-21679

In the Linux kernel, the following vulnerability has been resolved: btrfs: add the missing error handling inside getcanonicaldevpath Inside function getcanonicaldevpath, we call dpath to get the final device path. But dpath can return error, and in that case the next strscpy call will trigger an...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: exfat: fix potential deadlock on exfatgetdentryset CVE-2024-42315 In the Linux kernel, the following vulnerability has been resolved: i3c: Use i3cdev-desc-info instead of calling i3cdevicegetinfo to avoid deadlock...

CVE-2025-21658 btrfs: avoid NULL pointer dereference if no valid extent tree

In the Linux kernel, the following vulnerability has been resolved: btrfs: avoid NULL pointer dereference if no valid extent tree BUG Syzbot reported a crash with the following call trace: BTRFS info device loop0: scrub: started on devid 1 BUG: kernel NULL pointer dereference, address:...

CVE-2024-57896 btrfs: flush delalloc workers queue before stopping cleaner kthread during unmount

In the Linux kernel, the following vulnerability has been resolved: btrfs: flush delalloc workers queue before stopping cleaner kthread during unmount During the unmount path, at closectree, we first stop the cleaner kthread, using kthreadstop which frees the associated taskstruct, and then stop...

CVE-2024-57896 btrfs: flush delalloc workers queue before stopping cleaner kthread during unmount

In the Linux kernel, the following vulnerability has been resolved: btrfs: flush delalloc workers queue before stopping cleaner kthread during unmount During the unmount path, at closectree, we first stop the cleaner kthread, using kthreadstop which frees the associated taskstruct, and then stop...

CVE-2024-57896 btrfs: flush delalloc workers queue before stopping cleaner kthread during unmount

In the Linux kernel, the following vulnerability has been resolved: btrfs: flush delalloc workers queue before stopping cleaner kthread during unmount During the unmount path, at closectree, we first stop the cleaner kthread, using kthreadstop which frees the associated taskstruct, and then stop...

CVE-2024-57896

CVE-2024-57896 corresponds to a Linux kernel use-after-free in the btrfs unmount path. During close_ctree(), the cleaner kthread is stopped and its task_struct freed, but a delalloc_worker may still wake the cleaner from inode.c:submit_compressed_extents(), causing use-after-free of the task_stru...

CVE-2024-48875

In the Linux kernel, CVE-2024-48875 is described as a fix for a btrfs issue: don’t take the dev_replace rwsem if the task already holds it. The root cause is a possible deadlock when btrfs_dev_replace flow takes the same rwsem twice during operations like btrfs_map_block, as demonstrated by a loc...

CVE-2024-48875 btrfs: don't take dev_replace rwsem on task already holding it

In the Linux kernel, the following vulnerability has been resolved: btrfs: don't take devreplace rwsem on task already holding it Running fstests btrfs/011 with MKFSOPTIONS="-O rst" to force the usage of the RAID stripe-tree, we get the following splat from lockdep: BTRFS info device sdd:...

CVE-2024-56774 btrfs: add a sanity check for btrfs root in btrfs_search_slot()

In the Linux kernel, the following vulnerability has been resolved: btrfs: add a sanity check for btrfs root in btrfssearchslot Syzbot reports a null-ptr-deref in btrfssearchslot. The reproducer is using rescue=ibadroots, and the extent tree root is corrupted thus the extent tree is NULL. When...

CVE-2024-56774 btrfs: add a sanity check for btrfs root in btrfs_search_slot()

In the Linux kernel, the following vulnerability has been resolved: btrfs: add a sanity check for btrfs root in btrfssearchslot Syzbot reports a null-ptr-deref in btrfssearchslot. The reproducer is using rescue=ibadroots, and the extent tree root is corrupted thus the extent tree is NULL. When...

CVE-2024-56774

CVE-2024-56774: Linux kernel vulnerability in btrfs_search_slot() where a NULL extent-tree root could cause a null-pointer dereference during scrub when the root is NULL. The issue is fixed by adding a sanity check for the btrfs root before usage. Affected component: btrfs within the Linux kernel...

CVE-2024-56581

In the Linux kernel, the following vulnerability has been resolved: btrfs: ref-verify: fix use-after-free after invalid ref action At btrfsreftreemod after we successfully inserted the new ref entry local variable 'ref' into the respective block entry's rbtree local variable 'be', if we find an...

CVE-2024-56759

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix use-after-free when COWing tree bock and tracing is enabled When a COWing a tree block, at btrfscowblock, and we have the tracepoint tracebtrfscowblock enabled and preemption is also enabled CONFIGPREEMPT=y, we can...

CVE-2024-56759 btrfs: fix use-after-free when COWing tree bock and tracing is enabled

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix use-after-free when COWing tree bock and tracing is enabled When a COWing a tree block, at btrfscowblock, and we have the tracepoint tracebtrfscowblock enabled and preemption is also enabled CONFIGPREEMPT=y, we can...