btrfs: avoid NULL pointer dereference if no valid extent tree

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Linux Distros Unpatched Vulnerability : CVE-2025-21658

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

CVE-2022-49409 ext4: fix bug_on in __es_tree_search

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bugon in estreesearch Hulk Robot reported a BUGON: ================================================================== kernel BUG at fs/ext4/extentsstatus.c:199! ... RIP: 0010:ext4esend fs/ext4/extentsstatus.c:199 inline...

CVE-2022-49409

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bugon in estreesearch Hulk Robot reported a BUGON: ================================================================== kernel BUG at fs/ext4/extentsstatus.c:199! ... RIP: 0010:ext4esend fs/ext4/extentsstatus.c:199 inline...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: A sanity check for the btrfs root has been added in btrfssearchslot. Syzbot reports a nullptrderef issue in btrfssearchslot. The reproducer uses rescue=ibadroots, and the extent tree root is corrupted; as a result, the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: We’ve fixed our handling of the situation where refs == 0 in the snapshot delete operation. In reada, there’s a bug where refs == 0 can occur. This could be problematic because we don’t hold a lock on the extent leaf, a...

Azure Linux 3.0 Security Update: kernel (CVE-2024-46840)

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-2024-46840 advisory. - In the Linux kernel, the following vulnerability has been resolved: btrfs: clean up our handling of refs == ...

SUSE CVE-2025-21658

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-2025-21658

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:...

UBUNTU-CVE-2025-21658

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-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-2025-21658

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-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-2024-41935

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to shrink read extent node in batches We use rwlock to protect core structure data of extent tree during its shrink, however, if there is a huge number of extent nodes in extent tree, during shrink of extent tree, it ma...

SUSE CVE-2024-41935

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to shrink read extent node in batches We use rwlock to protect core structure data of extent tree during its shrink, however, if there is a huge number of extent nodes in extent tree, during shrink of extent tree, it ma...

DEBIAN-CVE-2024-41935

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to shrink read extent node in batches We use rwlock to protect core structure data of extent tree during its shrink, however, if there is a huge number of extent nodes in extent tree, during shrink of extent tree, it ma...

UBUNTU-CVE-2024-41935

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to shrink read extent node in batches We use rwlock to protect core structure data of extent tree during its shrink, however, if there is a huge number of extent nodes in extent tree, during shrink of extent tree, it ma...

CVE-2024-41935 f2fs: fix to shrink read extent node in batches

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to shrink read extent node in batches We use rwlock to protect core structure data of extent tree during its shrink, however, if there is a huge number of extent nodes in extent tree, during shrink of extent tree, it ma...

SUSE CVE-2024-56774

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...

DEBIAN-CVE-2024-56774

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...