Important: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel 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 th...

RHEL 8 : kernel (RHSA-2026:42552)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:42552 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: RDMA/mana: Remove user...

ALSA-2026:42919 Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: crypto: afalg - zero initialize memory allocated via sockkmalloc CVE-2025-71113 kernel: Linux kernel: Denial of Service due to memory leak in tpm2loadcmd CVE-2025-71147 kernel:...

SUSE-SU-2026:22877-1 Security update for the Linux Kernel (Live Patch 11 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.32.1 fixes various security issues The following security issues were fixed: - CVE-2026-31505: iavf: fix out-of-bounds writes in iavfgetethtoolstats bsc1263094. - CVE-2026-31533: net/tls: fix use-after-free in -EBUSY error path of...

SUSE-SU-2026:22762-1 Security update for the Linux Kernel (Live Patch 8 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.29.1 fixes various security issues The following security issues were fixed: - CVE-2026-31505: iavf: fix out-of-bounds writes in iavfgetethtoolstats bsc1263094. - CVE-2026-31533: net/tls: fix use-after-free in -EBUSY error path of...

KEYS: fix overflow in keyctl_pkey_params_get_2()

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Linux Distros Unpatched Vulnerability : CVE-2026-63978

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/handshake: Drain pending requests at net namespace exit The arguments to listspliceinit in handshakenetexit are reversed. The call moves the local empty...

Linux Distros Unpatched Vulnerability : CVE-2026-63894

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: serialize DMABUF cancel against request completion...

CVE-2026-63920

In the Linux kernel, the following vulnerability has been resolved: ipv6: validate extension header length before copying to cmsg ip6datagramrecvspecificctl builds IPV6HOPOPTS,DSTOPTS,RTHDR cmsgs and their IPV62292 legacy counterparts by trusting the on-wire hdrlen byte ptr1 when computing the...

EUVD-2026-45859

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: advance loop vars in cfg80211mergeprofile cfg80211mergeprofile reassembles a Multi-BSSID non-transmitted BSS profile that has been split across multiple consecutive MBSSID elements. Its while-loop calls...

CVE-2026-64106 KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Reject restored DTE with out-of-range numeventidbits Userspace can restore an ITS Device Table Entry whose Size field encodes more EventID bits than the virtual ITS supports. The live MAPD path rejects that...

CVE-2026-64082 riscv: Fix register corruption from uninitialized cregs on error

In the Linux kernel, the following vulnerability has been resolved: riscv: Fix register corruption from uninitialized cregs on error compatriscvgprset calls cregstoregs unconditionally, even when userregsetcopyin fails. Since cregs is an uninitialized stack variable, a copyin failure causes...

CVE-2026-64029

The provided reports describe a Linux kernel vulnerability in ALSA seq: UMP output teardown where seq_ump_process_event() borrows client->out_rfile.output without proper synchronization, allowing a rawmidi substream to be torn down while an event_input callback is active. The fix, as documente...

CVE-2026-63996

In the Linux kernel, the following vulnerability has been resolved: ethtool: cmis: require exact CDB reply length Malicious SFP module could respond with rpllen longer than what cmiscdbprocessreply expected, leading to OOB writes. Malicious HW is a bit theoretical but some modules may just be bug...

CVE-2026-63996 ethtool: cmis: require exact CDB reply length

In the Linux kernel, the following vulnerability has been resolved: ethtool: cmis: require exact CDB reply length Malicious SFP module could respond with rpllen longer than what cmiscdbprocessreply expected, leading to OOB writes. Malicious HW is a bit theoretical but some modules may just be bug...

CVE-2026-63984 ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress()

In the Linux kernel, the following vulnerability has been resolved: ipv6: rpl: fix hdrlen overflow in ipv6rplsrhdecompress ipv6rplsrhdecompress computes: outhdr-hdrlen = n + 1 sizeofstruct in6addr 3; hdrlen is u8. For n = 127 the result exceeds 255 and silently truncates. With n=127 cmpri=15,...

CVE-2026-63914

The CVE-2026-63914 issue concerns Linux kernel xfrm/af_key path handling where XFRM_MSG_MIGRATE notifications were unintentionally sent to init_net instead of the caller’s netns due to hardcoded &init_net in xfrm_send_migrate() and pfkey_send_migrate(). The netlink path for migrations was not net...

CVE-2026-63894

Summary (CVE-2026-63894): A race in Linux kernel’s FunctionFS DMABUF handling allows a freed usb_request to be dequeued via an obsolete priv->req pointer when cancelling a DMABUF attachment. The root cause is that ffs_epfile_dmabuf_io_complete() frees the request but leaves priv->req pointi...

CVE-2026-63887 scsi: target: iscsi: Bound iscsi_encode_text_output() appends to rsp_buf

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Bound iscsiencodetextoutput appends to rspbuf iscsiencodetextoutput concatenates "key=value\0" records into login-rspbuf, an 8192-byte kzallocMAXKEYVALUEPAIRS buffer allocated in iscsitallocloginsetupbuffer...

CVE-2026-63862 PCI: mediatek-gen3: Prevent leaking IRQ domains when IRQ not found

In the Linux kernel, the following vulnerability has been resolved: PCI: mediatek-gen3: Prevent leaking IRQ domains when IRQ not found In mtkpciesetupirq, the IRQ domains are allocated before the controller's IRQ is fetched. If the latter fails, the function directly returns an error, without...