CVE-2026-98433

A flaw was found in the Linux kernel's KVM Kernel-based Virtual Machine subsystem for PowerPC architectures. When handling secure virtual machines, a failure during secure memory paging fails to release allocated device memory and internal metadata. A local user can exploit this vulnerability by...

SUSE-SU-2026:4730-1 Security update for the Linux Kernel (Live Patch 30 for SUSE Linux Enterprise 15 SP5)

This update for the SUSE Linux Enterprise Kernel 5.14.21-150500.55.121 fixes various security issues: The following security issues were fixed: - CVE-2026-53131: netfilter: require Ethernet MAC header before using ethhdr bsc1269775. - CVE-2026-63794: KVM: SVM: Fix page overflow in sevdbgcrypt for...

kernel: ipv6: validate extension header length before copying to cmsg

A flaw was found in the Linux kernel's IPv6 networking stack. An unprivileged local user could exploit a vulnerability in how IPv6 extension header lengths are handled. By manipulating these headers using nftables, an attacker can trigger an out-of-bounds read, leading to information disclosure...

kernel: ipv6: exthdrs: refresh nh after handling HAO option

A flaw was found in the Linux kernel's IPv6 extension header processing. When processing the Home Address Option HAO, the cached network header pointer may become invalid if the packet's memory is reallocated. This can lead to incorrect parsing of subsequent IPv6 Type-Length-Value TLV options,...

kernel: netfilter: nfnetlink_cthelper: fix OOB read in nfnl_cthelper_dump_table()

A flaw was found in the Linux kernel's nfnetlinkcthelper component. This vulnerability, an out-of-bounds read, occurs in the nfnlcthelperdumptable function when a network connection tracking helper is removed during a dump operation, leading to a bypassed bounds check. A local attacker could...

kernel: scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show()

A flaw was found in the Linux kernel's SCSI target subsystem. This vulnerability, a buffer overflow, occurs in the tgptgpmembersshow function when processing long iSCSI IQN names. An attacker could potentially exploit this by providing a specially crafted input, leading to the disclosure of...

UBUNTU-CVE-2026-98683

In the Linux kernel, the following vulnerability has been resolved: smb: client: flush dirty data before zeroing a range smb3zerorange emulates FALLOCFLZERORANGE by invalidating the page cache over the target range with truncatepagecacherange and then issuing FSCTLSETZERODATA to the server. Dirty...

UBUNTU-CVE-2026-98690

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Fix domain reference leak when DPRX read is canceled tbtunnelonedp takes a domain reference which is only dropped once tbdptunnelactive has run on the work queue. If that work is cancelled that reference is leaked...

UBUNTU-CVE-2026-98633

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btnxpuart: Fix skb leak in nxpprocessfwdump When CONFIGDEVCOREDUMP=n, hcidevcdappend returns -EOPNOTSUPP without freeing its skb argument. This leaks the cloned skb and also prevents nxpsetindreset from being called to...

UBUNTU-CVE-2026-98723

In the Linux kernel, the following vulnerability has been resolved: nvmet: copy the hostid into the ctrl before creating PR pcrefs Commit 6202783184bf "nvmet: Improve nvmetallocctrl interface and implementation" added a second uuidcopy of args-hostid near the end of nvmetallocctrl, and commit...

UBUNTU-CVE-2026-98844

In the Linux kernel, the following vulnerability has been resolved: netfs: clear post-EOF pagecache when extending a file via write Fix netfs to erase the contents of a hole created after the EOF by an ordinary write if dirty data has been previously left there by writes through an mmapped region...

CVE-2026-98868

In the Linux kernel, the following vulnerability has been resolved: dm-pcache: reject a kset that overruns its segment cachereplay, the writeback worker and the GC worker read a kset of getksetonmediasize bytes and advance the position by it. A forged keynum makes that size exceed the segment's...

CVE-2026-98729

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Don't apply vaalign to hugetlb mappings on AMD F15h getalignmask returns hugepagemaskalign for hugetlbfs, but getalignbits adds vaalign.bits regardless, so vmunmappedarea returns an address off the huge page boundary and...

UBUNTU-CVE-2026-98834

In the Linux kernel, the following vulnerability has been resolved: mtd: core: avoid double-free of OTP NVMEM device If factory OTP setup fails after the user OTP NVMEM device has been registered, mtdotpnvmemadd unregisters the user device but leaves mtd-otpusernvmem set. On an error, the caller...

UBUNTU-CVE-2026-98729

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Don't apply vaalign to hugetlb mappings on AMD F15h getalignmask returns hugepagemaskalign for hugetlbfs, but getalignbits adds vaalign.bits regardless, so vmunmappedarea returns an address off the huge page boundary and...

UBUNTU-CVE-2026-98853

In the Linux kernel, the following vulnerability has been resolved: net: gso: limit recursive IP-in-IP segmentation IP-in-IP GSO can re-enter inetgsosegment or ipv6gsosegment for each nested IP header. encaplevel tracks header bytes, not callback depth, so a deep chain can exhaust the kernel stac...

UBUNTU-CVE-2026-98598

In the Linux kernel, the following vulnerability has been resolved: ipv6: Prevent rt6insertexception for dying fib6info. Before the cited commit, fib6nhflushexceptions always set from-exceptionbucketflushed = 1 under rt6exceptionlock to prevent rt6insertexception from inserting a new exception fo...

UBUNTU-CVE-2026-98559

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix UAF on lgr list traversal in smcrporterr smcrporterr traverses smclgrlist.list without holding smclgrlist.lock, allowing a concurrent smclgrterminatesched to free an lgr while it is still being dereferenced. Hold...

UBUNTU-CVE-2026-98700

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: set info-band for 802.3 encap offload frames Unlike the 802.11 TX paths, ieee802118023xmit does not set info-band from the channel context on non-MLD interfaces. It stays at 0, so ieee80211gettxrates uses the wron...

UBUNTU-CVE-2026-98565

In the Linux kernel, the following vulnerability has been resolved: net: dsa: mt7530: fix NULL dereference on unbind of MT7531 and MT7621 The core and io supplies are only requested for IDMT7530: both the devmregulatorget in probe and the regulatorenable in mt7530setup are guarded by the switch i...