kernel: nbd: always initialize struct msghdr completely

In the Linux kernel, the following vulnerability has been resolved: nbd: always initialize struct msghdr completely syzbot complains that msg-msggetinq value can be uninitialized 1 struct msghdr got many new fields recently, we should always make sure their values is zero by default. 1 BUG: KMSAN...

kernel: ext4: fix mb_cache_entry's e_refcnt leak in ext4_xattr_block_cache_find()

In the Linux kernel, the following vulnerability has been resolved: ext4: fix mbcacheentry's erefcnt leak in ext4xattrblockcachefind Syzbot reports a warning as follows: ============================================ WARNING: CPU: 0 PID: 5075 at fs/mbcache.c:419 mbcachedestroy+0x224/0x290 Modules...

kernel: usb: xhci: prevent potential failure in handle_tx_event() for Transfer events without TRB

In the Linux kernel, the following vulnerability has been resolved: usb: xhci: prevent potential failure in handletxevent for Transfer events without TRB Some transfer events don't always point to a TRB, and consequently don't have a endpoint ring. In these cases, function handletxevent should no...

kernel: block: refine the EOF check in blkdev_iomap_begin

In the Linux kernel, the following vulnerability has been resolved: block: refine the EOF check in blkdeviomapbegin blkdeviomapbegin rounds down the offset to the logical block size before stashing it in iomap-offset and checking that it still is inside the inode size. Check the isize check to th...

kernel: block: fix request.queuelist usage in flush

A vulnerability was found in the Linux kernel's block subsystem, where the issue arises when the request queue list is not properly initialized for the first request in the PREFLUSH/POSTFLUSH sequences, leading to potential kernel crashes due to improper list manipulation...

kernel: null_blk: fix validation of block size

In the Linux kernel, the following vulnerability has been resolved: nullblk: fix validation of block size Block size should be between 512 and PAGESIZE and be a power of 2. The current check does not validate this, so update the check. Without this patch, nullblk would Oops due to a null pointer...

kernel: firmware: cs_dsp: Validate payload length before processing block

In the Linux kernel, the following vulnerability has been resolved: firmware: csdsp: Validate payload length before processing block Move the payload length check in csdspload and csdspcoeffload to be done before the block is processed. The check that the length of a block payload does not exceed...

kernel: firmware: cs_dsp: Return error if block header overflows file

A denial of service vulnerability was found in the Linux kernel. No error was returned from the csdsppowerup function if a block header is longer than the amount of data left in the file...

kernel: pmdomain: imx8mp-blk-ctrl: imx8mp_blk: Add fdcc clock to hdmimix domain

In the Linux kernel, the following vulnerability has been resolved: pmdomain: imx8mp-blk-ctrl: imx8mpblk: Add fdcc clock to hdmimix domain The Linux kernel CVE team has assigned CVE-2024-35942 to this issue. Upstream advisory:...

kernel: block: fix overflow in blk_ioctl_discard()

In the Linux kernel, the following vulnerability has been resolved: block: fix overflow in blkioctldiscard There is no check for overflow of 'start + len' in blkioctldiscard. Hung task occurs if submit an discard ioctl with the following param: start = 0x80000000000ff000, len = 0x8000000000fff000...

kernel: null_blk: fix poll request timeout handling

In the Linux kernel, the following vulnerability has been resolved: nullblk: fix poll request timeout handling When doing iouring benchmark on /dev/nullb0, it's easy to crash the kernel if poll requests timeout triggered, as reported by David. 1 BUG: kernel NULL pointer dereference, address:...

kernel: Linux kernel: Denial of Service via NULL pointer dereference in blk-cgroup

A flaw was found in the Linux kernel's block cgroup blk-cgroup component. A local attacker could exploit a race condition in the blkcgactivatepolicy function, where block group policy data blkgpolicydata is installed before it is fully initialized. This allows another function, iocweightwrite, to...

kernel: ext4: avoid dividing by 0 in mb_update_avg_fragment_size() when block bitmap corrupt

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid dividing by 0 in mbupdateavgfragmentsize when block bitmap corrupt The Linux kernel CVE team has assigned CVE-2024-26774 to this issue. Upstream advisory:...

kernel: block: fix module reference leakage from bdev_open_by_dev error path

In the Linux kernel, the following vulnerability has been resolved: block: fix module reference leakage from bdevopenbydev error path The Linux kernel CVE team has assigned CVE-2024-35859 to this issue. Upstream advisory:...

kernel: smb: client: fix potential UAF in smb2_is_network_name_deleted()

A use-after-free flaw was found in the Linux kernel in smb smb2isnetworknamedeleted when exiting a session. This flaw allows a local attacker to crash the system...

kernel: ext4: avoid allocating blocks from corrupted group in ext4_mb_find_by_goal()

A vulnerability was found in the ext4mbfindbygoal function in the Linux kernel. This issue could lead to memory corruption or crashes due to the allocation of blocks from a group with a corrupted block bitmap...

kernel: smb: client: guarantee refcounted children from parent session

The following vulnerability has been resolved in the Linux kernel: smb: client: Fix - Guarantee refcounted children from the parent session...

kernel: block: fix deadlock between bd_link_disk_holder and partition scan

A flaw was found in the Linux kernel, where a deadlock can occur between bdlinkdiskholder and partition scan...

kernel: smb: client: potential use-after-free in cifs_debug_files_proc_show()

A flaw was found in the Linux kernel. The following vulnerability has been resolved: smb: client: fix potential UAF in cifsdebugfilesprocshow...

kernel: blk-mq: fix tags leak when shrink nr_hw_queues

A memory leak flaw was found in the Linux kernel's block multi-queue blk-mq subsystem. When the number of hardware queues is reduced via the submitqueues parameter, the tags associated with the removed queues are not freed, causing a memory leak. This occurs because shrinking nrhwqueues does not...