CVE-2026-45076 Synapse pagination denial of service

Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, in federated rooms, malicious homeservers can craft room events in such a way that prevents Synapse from providing full history to paginating clients. Clients could therefore fail to display room history. This...

EUVD-2026-32934

Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, in federated rooms, malicious homeservers can craft room events in such a way that prevents Synapse from providing full history to paginating clients. Clients could therefore fail to display room history. This...

CVE-2026-45076

Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, in federated rooms, malicious homeservers can craft room events in such a way that prevents Synapse from providing full history to paginating clients. Clients could therefore fail to display room history. This...

samba: Fix of 2 CVEs

CVE-2019-3880: Refuse winreg SaveKey/RestoreKey RPCs to prevent writing registry hive files outside intended share boundaries via symlink races - CVE-2019-10218: Reject server-supplied filenames containing path separators in SMB1 directory listings to protect libsmbclient consumers from path...

CVE-2026-46195

A flaw was found in the Linux kernel's Server Message Block SMB client. A malicious server can exploit this vulnerability on 32-bit systems by providing a crafted dacloffset value. This can cause a pointer wrap, leading to the dereferencing of invalid Discretionary Access Control List DACL fields...

kernel: smb: client: validate the whole DACL before rewriting it in cifsacl

A flaw was found in the Linux kernel's Server Message Block SMB client, specifically within the cifsacl functionality. A malicious SMB server could provide a malformed Discretionary Access Control List DACL that claims to contain more Access Control Entries ACEs than are actually present. This...

Important: Red Hat Security Advisory: kernel-rt security update

An update for kernel-rt is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

CVE-2026-46195

In the Linux kernel, the following vulnerability has been resolved: smb: client: validate dacloffset before building DACL pointers parsesecdesc, buildsecdesc, and the chown path in idmodetocifsacl all add the server-supplied dacloffset to pntsd before proving a DACL header fits inside the returne...

CVE-2026-46185

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix out-of-bounds read in symlinkdata Since smb2checkmessage returns success without length validation for the symlink error response, in symlinkdata it is possible for iov-iovlen to be smaller than sizeofstruct...

CVE-2026-46175

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix fsck inconsistency caused by FGGC of node block During FGGC node block migration, fsck may incorrectly treat the migrated node block as fsync-written data. The reproduction scenario: root@vm:/mnt/f2fs seq 1 2048 | xargs...

AZL-88860 CVE-2026-46175 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix fsck inconsistency caused by FGGC of node block During FGGC node block migration, fsck may incorrectly treat the migrated node block as fsync-written data. The reproduction scenario: root@vm:/mnt/f2fs seq 1 2048 | xargs...

CVE-2026-46159

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix btrfsioctlspaceinfo slotcount TOCTOU which can lead to info-leak btrfsioctlspaceinfo has a TOCTOU race between two passes over the block group RAID type lists. The first pass counts entries to determine the allocation...

CVE-2026-46139

In the Linux kernel, the following vulnerability has been resolved: smb: client: use kzalloc to zero-initialize security descriptor buffer Commit 62e7dd0a39c2d "smb: common: change the data type of numaces to le16" split struct smbacl's le32 numaces field into le16 numaces and le16 reserved. The...

AZL-88935 CVE-2026-46130 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: dm-verity-fec: fix reading parity bytes split across blocks take 3 fecdecodebufs assumes that the parity bytes of the first RS codeword it decodes are never split across parity blocks. This assumption is false. Consider...

AZL-88947 CVE-2026-46124 affecting package kernel for versions less than 6.6.141.1-1

In the Linux kernel, the following vulnerability has been resolved: isofs: validate block number from NFS file handle in isofsexportiget isofsfhtodentry and isofsfhtoparent pass an attacker- controlled block number ifid-block or ifid-parentblock from the NFS file handle to isofsexportiget, which...

CVE-2026-46124

In the Linux kernel, the following vulnerability has been resolved: isofs: validate block number from NFS file handle in isofsexportiget isofsfhtodentry and isofsfhtoparent pass an attacker- controlled block number ifid-block or ifid-parentblock from the NFS file handle to isofsexportiget, which...

AZL-88812 CVE-2026-46115 affecting package kernel for versions less than 6.6.141.1-1

In the Linux kernel, the following vulnerability has been resolved: block: add pgmap check to biovecphysmergeable biovecphysmergeable is used by the request merge, DMA mapping, and integrity merge paths to decide if two physically contiguous bvec segments can be coalesced into one. It currently h...

CVE-2026-46130

In the Linux kernel, the following vulnerability has been resolved: dm-verity-fec: fix reading parity bytes split across blocks take 3 fecdecodebufs assumes that the parity bytes of the first RS codeword it decodes are never split across parity blocks. This assumption is false. Consider...

CVE-2026-46175

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix fsck inconsistency caused by FGGC of node block During FGGC node block migration, fsck may incorrectly treat the migrated node block as fsync-written data. The reproduction scenario: root@vm:/mnt/f2fs seq 1 2048 | xargs...

UBUNTU-CVE-2026-46175

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix fsck inconsistency caused by FGGC of node block During FGGC node block migration, fsck may incorrectly treat the migrated node block as fsync-written data. The reproduction scenario: root@vm:/mnt/f2fs seq 1 2048 | xargs...