UBUNTU-CVE-2021-47552

In the Linux kernel, the following vulnerability has been resolved: blk-mq: cancel blk-mq dispatch work in both blkcleanupqueue and diskrelease For avoiding to slow down queue destroy, we don't call blkmqquiescequeue in blkcleanupqueue, instead of delaying to cancel dispatch work in...

CVE-2021-47508

In the Linux kernel, the following vulnerability has been resolved: btrfs: free exchange changeset on failures Fstests runs on my VMs have show several kmemleak reports like the following. unreferenced object 0xffff88811ae59080 size 64: comm "xfsio", pid 12124, jiffies 4294987392 age 6.368s hex...

CVE-2021-47508 btrfs: free exchange changeset on failures

In the Linux kernel, the following vulnerability has been resolved: btrfs: free exchange changeset on failures Fstests runs on my VMs have show several kmemleak reports like the following. unreferenced object 0xffff88811ae59080 size 64: comm "xfsio", pid 12124, jiffies 4294987392 age 6.368s hex...

CVE-2021-47508

CVE-2021-47508 affects the Linux kernel’s btrfs code path. The issue is a memory leak: when qgroup/data reservation fails in btrfs_check_data_free_space() or btrfs_delalloc_reserve_space(), the allocated extent_changeset is not freed. This occurs specifically in the direct IO write path (and rela...

CVE-2021-47508 btrfs: free exchange changeset on failures

In the Linux kernel, the following vulnerability has been resolved: btrfs: free exchange changeset on failures Fstests runs on my VMs have show several kmemleak reports like the following. unreferenced object 0xffff88811ae59080 size 64: comm "xfsio", pid 12124, jiffies 4294987392 age 6.368s hex...

PT-2024-8979

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 5.16.0-rc1-syzkaller Description: The issue is related to the io uring component of the Linux kernel, which is associated with incorrect resource locking. This can lead to a denial of service when the callback i...

PT-2024-8913

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to a memory leak in the btrfs component of the Linux kernel. When btrfs qgroup reserve data or btrfs delalloc reserve metadata fail, the allocated extent changeset...

CVE-2021-47508: Missing Release of Memory after Effective Lifetime

In the Linux kernel, the following vulnerability has been resolved: btrfs: free exchange changeset on failures Fstests runs on my VMs have show several kmemleak reports like the following. unreferenced object 0xffff88811ae59080 size 64: comm "xfsio", pid 12124, jiffies 4294987392 age 6.368s hex...

Linux Kernel Security Vulnerabilities

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 a post-release reuse issue in the aio module due to a lack of POLLFREE handling...

PT-2024-8917

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the io uring component of the Linux kernel, which is associated with resource management errors. If a work item is canceled but needs to be processed through ta...

SUSE CVE-2021-47390

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix stack-out-of-bounds memory access from ioapicwriteindirect KASAN reports the following issue: BUG: KASAN: stack-out-of-bounds in kvmmakevcpusrequestmask+0x174/0x440 kvm Read of size 8 at addr ffffc9001364f638 by tas...

CVE-2021-47268

In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm: cancel vdm and state machine hrtimer when unregister tcpm port A pending hrtimer may expire after the kthreadworker of tcpm port is destroyed, see below kernel dump when do module unload, fix it by cancel the 2...

SUSE CVE-2023-52700

In the Linux kernel, the following vulnerability has been resolved: tipc: fix kernel warning when sending SYN message When sending a SYN message, this kernel stack trace is observed: ... 13.396352 RIP: 0010:copyfromiter+0xb4/0x550 ... 13.398494 Call Trace: 13.398630 13.398630 ? allocskb+0xed/0x1a...

kernel: scsi: qla2xxx: Wait for io return on terminate rport

A flaw was found in the Linux kernel’s SCSI driver component qla2xxx used with FCP-2 devices. When the terminaterportio function is invoked , the driver may exit cleanup before all outstanding I/O operations have returned. This can lead to a use-after-free condition when resources are freed while...

CVE-2021-47435

In the Linux kernel, the following vulnerability has been resolved: dm: fix mempool NULL pointer race when completing IO dmiodecpending calls endioacct first and will then dec md in-flight pending count. But if a task is swapping DM table at same time this can result in a crash due to...

UBUNTU-CVE-2021-47435

In the Linux kernel, the following vulnerability has been resolved: dm: fix mempool NULL pointer race when completing IO dmiodecpending calls endioacct first and will then dec md in-flight pending count. But if a task is swapping DM table at same time this can result in a crash due to...

CVE-2021-47435

CVE-2021-47435 affects the Linux kernel device-mapper (dm) path, causing a crash via a NULL pointer dereference during IO completion. The issue stems from dm_io_dec_pending() calling end_io_acct() before the in-flight pending count is decremented, and a race if a DM table swap happens concurrentl...

UBUNTU-CVE-2023-52790

In the Linux kernel, the following vulnerability has been resolved: swiotlb: fix out-of-bounds TLB allocations with CONFIGSWIOTLBDYNAMIC Limit the free list length to the size of the IO TLB. Transient pool can be smaller than IOTLBSEGSIZE, but the free list is initialized with the assumption that...

UBUNTU-CVE-2023-52848

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to drop metainode's page cache in f2fsputsuper syzbot reports a kernel bug as below: F2FS-fs loop1: detect filesystem reference count leak during umount, type: 10, count: 1 kernel BUG at fs/f2fs/super.c:1639! CPU: 0 PID...

CVE-2023-52848

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to drop metainode's page cache in f2fsputsuper syzbot reports a kernel bug as below: F2FS-fs loop1: detect filesystem reference count leak during umount, type: 10, count: 1 kernel BUG at fs/f2fs/super.c:1639! CPU: 0 PID...