CVE-2022-49168

The CVE-2022-49168 entry concerns a Linux kernel bug in the btrfs repair path. The issue occurred when the repair submission failed and the code attempted to clean up the repair bio simultaneously with endio, creating potential use-after-free and NULL dereference conditions due to racing with bio...

CVE-2022-49167

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not double complete bio on errors during compressed reads I hit some weird panics while fixing up the error handling from btrfslookupbiosums. Turns out the compression path will complete the bio we use if we set up any ...

CVE-2022-49079

CVE-2022-49079 involves the Linux kernel Btrfs zoned code. Root cause: btrfs_can_activate_zone() could be invoked with fs_devices->device_list_mutex already held, risking deadlock through a long call chain (insert_dev_extents -> find_free_extent -> can_allocate_chunk etc.). Mitigation de...

CVE-2022-49079 btrfs: zoned: traverse devices under chunk_mutex in btrfs_can_activate_zone

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: traverse devices under chunkmutex in btrfscanactivatezone btrfscanactivatezone can be called with the devicelistmutex already held, which will lead to a deadlock: insertdevextents // Takes devicelistmutex -...

CVE-2022-49079 btrfs: zoned: traverse devices under chunk_mutex in btrfs_can_activate_zone

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: traverse devices under chunkmutex in btrfscanactivatezone btrfscanactivatezone can be called with the devicelistmutex already held, which will lead to a deadlock: insertdevextents // Takes devicelistmutex -...

CVE-2022-49079

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: traverse devices under chunkmutex in btrfscanactivatezone btrfscanactivatezone can be called with the devicelistmutex already held, which will lead to a deadlock: insertdevextents // Takes devicelistmutex -...

CVE-2022-49075 btrfs: fix qgroup reserve overflow the qgroup limit

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix qgroup reserve overflow the qgroup limit We use extentchangeset-byteschanged in qgroupreservedata to record how many bytes we set for EXTENTQGROUPRESERVED state. Currently the byteschanged is set as "unsigned int", and...

CVE-2022-49075

CVE-2022-49075 is a Linux kernel issue in btrfs where qgroup reserve tracking used an unsigned int for bytes_changed, allowing overflow when fallocate exceeds 4 GiB. This caused incorrect qgroup accounting and could breach the qgroup limit. The published fixes switch bytes_changed to a 64-bit fie...

CVE-2022-49068

CVE-2022-49068 — Summary (Linux kernel, btrfs) The issue occurs in btrfs direct IO write path: during get_blocks_direct_write(), temporary delalloc extents are reserved and later released with btrfs_delalloc_release_extents(). If the length is modified in the COW path, fewer extents may be releas...

CVE-2022-49068 btrfs: release correct delalloc amount in direct IO write path

In the Linux kernel, the following vulnerability has been resolved: btrfs: release correct delalloc amount in direct IO write path Running generic/406 causes the following WARNING in btrfsdestroyinode which tells there are outstanding extents left. In btrfsgetblocksdirectwrite, we reserve a...

CVE-2022-49068

In the Linux kernel, the following vulnerability has been resolved: btrfs: release correct delalloc amount in direct IO write path Running generic/406 causes the following WARNING in btrfsdestroyinode which tells there are outstanding extents left. In btrfsgetblocksdirectwrite, we reserve a...

CVE-2022-49068 btrfs: release correct delalloc amount in direct IO write path

In the Linux kernel, the following vulnerability has been resolved: btrfs: release correct delalloc amount in direct IO write path Running generic/406 causes the following WARNING in btrfsdestroyinode which tells there are outstanding extents left. In btrfsgetblocksdirectwrite, we reserve a...

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 btrfs driver incorrectly cleaning up a bio when fixing a failed bio commit, potentially leading to a...

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 btrfscanactivatezone traversing the device list without holding a chunkmutex, which could result in a deadlo...

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 btrfs driver double-completing a bio on a compressed read error, which could lead to problems...

PT-2025-8480

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A deadlock can occur in the Linux kernel when multiple tasks attempt to write to the same file range in a btrfs file system, specifically when the file range covers multiple extents and...

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 originates from the qgroup reserve of btrfs overflowing the qgroup limit, resulting in an insufficient number of bytes...

USN-7289-2 linux-azure-5.15, linux-azure-fde-5.15, linux-oracle-5.15 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - x86 architecture; - Block layer subsystem; - ACPI drivers; - GPU drivers; - HID subsystem; -...

Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-7291-1)

"The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7291-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update...

The vulnerability of the btrfs component in the Linux operating system’s kernel allows a hacker to trigger a service failure.

The vulnerability of the btrfs component in Linux operating systems is related to improper locking mechanisms. Exploiting this vulnerability can allow an attacker to cause a service failure...