CVE-2023-53455

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: drop all currently held locks if deadlock happens If vc4hdmiresetlink returns -EDEADLK, it means that a deadlock happened in the locking context. This situation should be addressed by dropping all currently held locks an...

CVE-2023-53455

CVE-2023-53455 concerns the Linux kernel DRM vc4 deadlock: vc4_hdmi_reset_link() returning -EDEADLK may deadlock in the locking context. The accepted fix is to drop held locks and back off using drm_modeset_backoff(), per the cited kernel DRM-KMS guidance. The vulnerability entry provides example...

CVE-2023-53455 drm/vc4: drop all currently held locks if deadlock happens

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: drop all currently held locks if deadlock happens If vc4hdmiresetlink returns -EDEADLK, it means that a deadlock happened in the locking context. This situation should be addressed by dropping all currently held locks an...

PT-2025-40162

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.1.0-rc6-01399-g941aae326315 Description The Linux kernel contains a flaw within the DRM/VC4 subsystem related to deadlock handling. Specifically, if vc4 hdmi reset link returns -EDEADLK, indicating a deadlock i...

Configure the Default Policies of iptables to DROP Properly

Generally, iptables policies can be configured in allowlist or blocklist mode. You are advised to configure iptables policies in allowlist mode. Connections that do not comply with the rules in the allowlist are prohibited. Therefore, you can configure the DROP or REJECT policy for the INPUT,...

Configure Proper Policies for INPUT of iptables

The INPUT chain is used to filter packets received from external systems. For any service provided for external systems, configure the corresponding INPUT policy and enable the related port so that external clients can access the service through the port. If the policy is not set, all packets tha...

kernel: sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue()

A flaw was found in the HFSC queueing discipline implementation in the Linux kernel. When a packet is enqueued and the child qdisc's peek function is called before properly updating the HFSC queue's length and backlog counters, a race condition can occur. In some cases, the peek operation may...

CVE-2025-39851

In the Linux kernel, the following vulnerability has been resolved: vxlan: Fix NPD when refreshing an FDB entry with a nexthop object VXLAN FDB entries can point to either a remote destination or an FDB nexthop group. The latter is usually used in EVPN deployments where learning is disabled...

CVE-2025-39851

CVE-2025-39851 relates to the Linux kernel VXLAN implementation. Affected scenario is when learning is enabled and an incoming packet attempts to refresh an FDB entry that points to an FDB nexthop group (not a remote destination). This could dereference a non-existent remote and trigger a NULL po...

SUSE CVE-2023-53321

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211hwsim: drop short frames While technically some control frames like ACK are shorter and end after Address 1, such frames shouldn't be forwarded through wmediumd or similar userspace, so require the full 3-address...

CVE-2023-53321

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211hwsim: drop short frames While technically some control frames like ACK are shorter and end after Address 1, such frames shouldn't be forwarded through wmediumd or similar userspace, so require the full 3-address...

CVE-2025-39819

CVE-2025-39819 affects the Linux kernel (fs/smb). The issue is an inconsistent refcount update in smb2_compound_op that could leak resources; a fix adds an extra cleanup goto to ensure cfile is dropped on all paths, including ENOMEM paths. The problem is limited to the kernel SMB path and is miti...

SUSE CVE-2022-50293

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not BUGON on ENOMEM when dropping extent items for a range If we get -ENOMEM while dropping file extent items in a given range, at btrfsdropextents, due to failure to allocate memory when attempting to increment the...

CVE-2025-59056

FreePBX is an open-source web-based graphical user interface. In FreePBX 15, 16, and 17, malicious connections to the Administrator Control Panel web interface can cause the uninstall function to be triggered for certain modules. This function drops the module's database tables, which is where mo...

CVE-2025-59056 FreePBX vulnerable to unauthenticated Denial of Service

FreePBX is an open-source web-based graphical user interface. In FreePBX 15, 16, and 17, malicious connections to the Administrator Control Panel web interface can cause the uninstall function to be triggered for certain modules. This function drops the module's database tables, which is where mo...

DEBIAN-CVE-2022-50293

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not BUGON on ENOMEM when dropping extent items for a range If we get -ENOMEM while dropping file extent items in a given range, at btrfsdropextents, due to failure to allocate memory when attempting to increment the...

CVE-2022-50293

CVE-2022-50293 affects the Linux kernel btrfs subsystem. When dropping file extent items for a range, ENOMEM could trigger a BUG_ON() path in btrfs_drop_extents(); the fix replaces those BUG_ON()s with proper transaction abort and error return handling. This means that instead of halting the tran...

CVE-2022-50293 btrfs: do not BUG_ON() on ENOMEM when dropping extent items for a range

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not BUGON on ENOMEM when dropping extent items for a range If we get -ENOMEM while dropping file extent items in a given range, at btrfsdropextents, due to failure to allocate memory when attempting to increment the...

CVE-2022-50293

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not BUGON on ENOMEM when dropping extent items for a range If we get -ENOMEM while dropping file extent items in a given range, at btrfsdropextents, due to failure to allocate memory when attempting to increment the...

CVE-2022-50293 btrfs: do not BUG_ON() on ENOMEM when dropping extent items for a range

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not BUGON on ENOMEM when dropping extent items for a range If we get -ENOMEM while dropping file extent items in a given range, at btrfsdropextents, due to failure to allocate memory when attempting to increment the...