UBUNTU-CVE-2026-54874

Issue summary: Receiving a DTLS record for a future epoch while a handshake is in progress causes OpenSSL to buffer far more memory than the record itself requires. Impact summary: A peer can use a small amount of network traffic to make an OpenSSL DTLS endpoint retain a disproportionately large...

The vulnerability of the rxgk_verify_response() function in the net/rxrpc/rxgk.c module allows attackers to compromise the confidentiality, integrity, and accessibility of protected information within the RxRPC session support of the Linux operating system’s kernel.

The vulnerability of the rxgkverifyresponse function in the net/rxrpc/rxgk.c module, which is part of the RxRPC session support for Linux kernel sockets, involves a numerical overflow vulnerability. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity...

The vulnerability of the rxkad_decrypt_ticket() function in the net/rxrpc/rxkad.c module, which is part of the RxRPC session support in the Linux operating system’s kernel, allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the rxkaddecryptticket function in the net/rxrpc/rxkad.c module, which is part of the RxRPC session support in the Linux operating system’s kernel, stems from the lack of checking for the return value. Exploiting this vulnerability could allow a remote attacker to compromise...

The vulnerability of the matchSession() function in the fs/smb/client/connect.c module of the Smb file system in the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the matchSession function in the fs/smb/client/connect.c file of the SMB file system module in the Linux operating system is related to deficiencies in the authentication process. Exploiting this vulnerability could allow an attacker to compromise the confidentiality,...

The vulnerability of the usbip_pack_ret_submit() function in the drivers/usb/usbip/usbip_common.c file of the Linux operating system’s device driver module allows a hacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the usbippackretsubmit function in the drivers/usb/usbip/usbipcommon.c file of the Linux device driver module is related to the execution of operations outside the buffer in memory. Exploiting this vulnerability could allow a remote attacker to compromise the confidentiality,...

The vulnerability of the smbd_post_send_iter() function in the fs/smb/client/smbdirect.c module of the Smb file system in the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the smbdpostsenditer function in the fs/smb/client/smbdirect.c module of the Smb file system in the Linux operating system is related to the repeated release of previously released memory. Exploiting this vulnerability could allow a remote attacker to compromise the...

The vulnerability of the rtsc_min() function in the net/sched/sch_hfsc.c module of the Linux operating system’s network/scheduling subsystem allows a attacker to cause a service failure.

The vulnerability of the rtscmin function in the net/sched/schhfsc.c module of the Linux operating system’s network/scheduling subsystem is related to zero-division errors. Exploiting this vulnerability could allow an attacker to cause a service failure...

The vulnerabilities of the functions nv50_piorDestroy() and nv50_piorCreate() in the driver/gpu/drm/nouveau/dispnv50/disp.c file of the Nouveau driver for the Direct Rendering Infrastructure (DRI) of NVIDIA’s Linux kernel allow a malicious actor to cause a service failure.

The vulnerability of the functions nv50piordestroy and nv50piorcreate in the drivers/gpu/drm/nouveau/dispnv50/disp.c module of the Nouveau graphics driver for Linux operating systems is related to the lack of resource initialization. Exploiting this vulnerability can allow an attacker to cause a...

The vulnerability of the ctnetlink_exp_dump_expect() function in the net/netfilter/nf_conntrack_netlink.c module of the netfilter component of the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the ctnetlinkexpdumpexpect function in the net/netfilter/nfconntracknetlink.c module of the netfilter component of the Linux operating system is related to the use of pointers. Exploiting this vulnerability could allow a remote attacker to compromise the confidentiality,...

The vulnerability of the acpi_ec_setup() function in the drivers/acpi/ec.c file of the Linux ACPI configuration and power management extension driver module allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the acpiecsetup function in the drivers/acpi/ec.c file of the Linux ACPI configuration and power management extension driver is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality,...

The vulnerability of the ip6_datagram_send_ctl() function in the net/ipv6/datagram.c module of the IPv6 protocol implementation in the Linux operating system allows a attacker to cause a service failure.

The vulnerability of the ip6datagramsendctl function in the net/ipv6/datagram.c module of the IPv6 protocol implementation in the Linux operating system is related to improper resource release. Exploiting this vulnerability could allow an attacker to cause a service failure...

The vulnerability of the kernel_pgtable_work_func() function in the mm/pgtable-generic.c module, and the iommu_svaBindDevice() function in the drivers/iommu/iommu-sva.c module of the Linux operating system’s IOMMU driver, allows a attacker to influence the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the iommuallocmmdata function in the drivers/iommu/iommu-sva.c module of the Linux IOMMU driver is related to state management errors. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of protected informatio...

The vulnerability of the function ieee80211_parse_adv_t2l() in the module net/mac80211/mlme.c of the mac80211 stack in the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the function ieee80211parseadvt2l in the net/mac80211/mlme.c module of the mac80211 stack in the Linux operating system is related to incorrect assumptions regarding the organization of data or memory. Exploiting this vulnerability could allow a remote attacker to compromise...

The vulnerability of the io_worker_handle_work() function in the io_uring/io-wq.c module, a component of the Linux kernel’s asynchronous input/output interface, allows a attacker to cause a service failure.

The vulnerability of the ioworkerhandlework function in the iouring/io-wq.c module, which is part of the Linux kernel’s asynchronous input/output interface, is related to improper resource release. Exploiting this vulnerability could allow an attacker to cause a service failure...

The vulnerability of the `prepare_playback_urb()` function in the sound/usb/pcm.c module, which supports USB audio devices in Linux operating systems, allows a hacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the prepareplaybackurb function in the sound/usb/pcm.c module, which supports USB audio devices in Linux operating systems, is related to the execution of operations outside of the buffer in memory. Exploiting this vulnerability could allow an attacker to compromise the...

The vulnerability of the x509_process_extension() function in the crypto/asymmetric_keys/x509_cert_parser.c module of the Linux kernel’s cryptographic subsystem allows a attacker to compromise the confidentiality and accessibility of the protected information.

The vulnerability of the x509processextension function in the crypto/asymmetrickeys/x509certparser.c module of the Linux kernel’s cryptographic subsystem is related to the execution of operations outside of the buffer boundaries in memory. Exploiting this vulnerability could allow an attacker to...

The vulnerability of the ppp_send_frame() function in the drivers/net/ppp/ppp_generic.c module of the Point-to-Point PPP protocol driver in the Linux operating system allows a attacker to cause a service failure.

The vulnerability of the pppsendframe function in the drivers/net/ppp/pppgeneric.c module of the Point-to-Point PPP protocol driver in the Linux operating system is related to the lack of resource initialization. Exploiting this vulnerability can allow an attacker to cause a service failure...

The vulnerability of the usb_gpib_attach() function in the drivers/gpib/lpvo_usb_gpib/lpvo_usb_gpib.c module of the Linux kernel allows a hacker to cause a service failure.

The vulnerability of the usbgpibattach function in the drivers/gpib/lpvousbgpib/lpvousbgpib.c module of the Linux kernel is related to improper memory release memory leak. Exploiting this vulnerability could allow a remote attacker to cause service interruptions...

The vulnerability of the ems_usb_read_bulk_callback() function in the drivers/net/can/usb/ems_usb.c module of the Linux network device driver allows a attacker to cause a service failure.

The vulnerability of the emsusbreadbulkcallback function in the drivers/net/can/usb/emsusb.c module of the Linux network device driver framework is related to the occurrence of operations outside the buffer in memory. Exploiting this vulnerability could allow an attacker to cause a service failur...

The vulnerability of the `sip_help_tcp()` function in the `net/netfilter/nf_conntrack_sip.c` module of the `netfilter` component of the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the siphelptcp function in the net/netfilter/nfconntracksip.c module of the netfilter component of the Linux operating system is related to insufficient verification of data authenticity. Exploiting this vulnerability could allow a remote attacker to compromise the...