CVE-2023-53513 nbd: fix incomplete validation of ioctl arg

In the Linux kernel, the following vulnerability has been resolved: nbd: fix incomplete validation of ioctl arg We tested and found an alarm caused by nbdioctl arg without verification. The UBSAN warning calltrace like below: UBSAN: Undefined behaviour in fs/buffer.c:1709:35 signed integer...

CVE-2023-53501 iommu/amd/iommu_v2: Fix pasid_state refcount dec hit 0 warning on pasid unbind

In the Linux kernel, the following vulnerability has been resolved: iommu/amd/iommuv2: Fix pasidstate refcount dec hit 0 warning on pasid unbind When unbinding pasid - a race condition exists vs outstanding page faults. To prevent this, the pasidstate object contains a refcount. set to 1 on pasid...

CVE-2022-50448 mm/uffd: fix warning without PTE_MARKER_UFFD_WP compiled in

In the Linux kernel, the following vulnerability has been resolved: mm/uffd: fix warning without PTEMARKERUFFDWP compiled in When PTEMARKERUFFDWP not configured, it's still possible to reach pte marker code and trigger an warning. Add a few CONFIGPTEMARKERUFFDWP ifdefs to make sure the code won't...

CVE-2022-50448 mm/uffd: fix warning without PTE_MARKER_UFFD_WP compiled in

In the Linux kernel, the following vulnerability has been resolved: mm/uffd: fix warning without PTEMARKERUFFDWP compiled in When PTEMARKERUFFDWP not configured, it's still possible to reach pte marker code and trigger an warning. Add a few CONFIGPTEMARKERUFFDWP ifdefs to make sure the code won't...

CVE-2022-50448

CVE-2022-50448 involves the Linux kernel mm/uffd path where PTE_MARKER_UFFD_WP was not guarded, allowing a reachable warning when PTE_MARKER_UFFD_WP was not configured. The fix adds CONFIG_PTE_MARKER_UFFD_WP specific ifdefs to ensure the code is not executed in builds without the option. Impact d...

CVE-2021-4460 drm/amdkfd: Fix UBSAN shift-out-of-bounds warning

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix UBSAN shift-out-of-bounds warning If getnumsdmaqueues or getnumxgmisdmaqueues is 0, we end up doing a shift operation where the number of bits shifted equals number of bits in the operand. This behaviour is...

CVE-2023-53450

The CVE-2023-53450 entry concerns the Linux kernel ext4 subsystem. A malicious fuzzer that overwrites the ext4 superblock while mounted can set s_first_data_block to a very large value, causing the block-group calculation to underflow and trigger a BUG_ON. The fix changes the BUG_ON to ext4_warni...

CVE-2022-50430

CVE-2022-50430 affects the Linux kernel mmc vub300 driver. The fix prevents calling blocking operations when the current task is not TASK_RUNNING by ensuring vub300_enable_sdio_irq() uses proper mutex usage and marks the current task as TASK_RUNNING in a sleepable context. This reduces a potentia...

CVE-2025-39914

In the Linux kernel, the following vulnerability has been resolved: tracing: Silence warning when chunk allocation fails in tracepidwrite Syzkaller trigger a fault injection warning: WARNING: CPU: 1 PID: 12326 at tracepointaddfunc+0xbfc/0xeb0 Modules linked in: CPU: 1 UID: 0 PID: 12326 Comm:...

CVE-2025-39894

In the Linux kernel, the following vulnerability has been resolved: netfilter: brnetfilter: do not check confirmed bit in brnflocalin after confirm When send a broadcast packet to a tap device, which was added to a bridge, brnflocalin is called to confirm the conntrack. If another conntrack with...

AZL-74745 CVE-2025-39894 affecting package kernel for versions less than 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: netfilter: brnetfilter: do not check confirmed bit in brnflocalin after confirm When send a broadcast packet to a tap device, which was added to a bridge, brnflocalin is called to confirm the conntrack. If another conntrack with...

UBUNTU-CVE-2025-39894

In the Linux kernel, the following vulnerability has been resolved: netfilter: brnetfilter: do not check confirmed bit in brnflocalin after confirm When send a broadcast packet to a tap device, which was added to a bridge, brnflocalin is called to confirm the conntrack. If another conntrack with...

UBUNTU-CVE-2025-39914

In the Linux kernel, the following vulnerability has been resolved: tracing: Silence warning when chunk allocation fails in tracepidwrite Syzkaller trigger a fault injection warning: WARNING: CPU: 1 PID: 12326 at tracepointaddfunc+0xbfc/0xeb0 Modules linked in: CPU: 1 UID: 0 PID: 12326 Comm:...

UBUNTU-CVE-2025-39900

In the Linux kernel, the following vulnerability has been resolved: netsched: genestimator: fix esttimer vs CONFIGPREEMPTRT=y syzbot reported a WARNING in esttimer 1 Problem here is that with CONFIGPREEMPTRT=y, timer callbacks can be preempted. Adopt preemptdisablenested/preemptenablenested to fi...

CVE-2025-39914 tracing: Silence warning when chunk allocation fails in trace_pid_write

In the Linux kernel, the following vulnerability has been resolved: tracing: Silence warning when chunk allocation fails in tracepidwrite Syzkaller trigger a fault injection warning: WARNING: CPU: 1 PID: 12326 at tracepointaddfunc+0xbfc/0xeb0 Modules linked in: CPU: 1 UID: 0 PID: 12326 Comm:...

CVE-2025-39914

CVE-2025-39914 affects the Linux kernel tracing subsystem. The issue occurs when a fault injection triggers a failure during chunk allocation in trace_pid_list_alloc, causing trace_pid_list_set to fail and potentially trigger a double registration of the same tracepoint (tracepoint_add_func). The...

CVE-2025-39914

In the Linux kernel, the following vulnerability has been resolved: tracing: Silence warning when chunk allocation fails in tracepidwrite Syzkaller trigger a fault injection warning: WARNING: CPU: 1 PID: 12326 at tracepointaddfunc+0xbfc/0xeb0 Modules linked in: CPU: 1 UID: 0 PID: 12326 Comm:...

CVE-2025-39904 arm64: kexec: initialize kexec_buf struct in load_other_segments()

In the Linux kernel, the following vulnerability has been resolved: arm64: kexec: initialize kexecbuf struct in loadothersegments Patch series "kexec: Fix invalid field access". The kexecbuf structure was previously declared without initialization. commit bf454ec31add "kexecfile: allow to place...

CVE-2025-39904

Summary: The CVE-2025-39904 issue affects the Linux kernel’s kexec path for arm64 (and riscv per the patch set). A kexec_buf structure was previously declared without full initialization, and a field added by a prior patch could be read uninitialized on some architectures, triggering UBSAN invali...

CVE-2025-39894

The CVE-2025-39894 issue is in the Linux kernel netfilter br_netfilter path: br_nf_local_in() confirms conntrack during handling of a broadcast to a tap device added to a bridge. If another conntrack with the same hash is added, a warning can be emitted. The root cause is br_nf_local_in() using t...