UBUNTU-CVE-2026-98304

In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: restore the hardware filters on open bcmgenethfbinit runs INITLISTHEAD on priv-rxnfclist, which drops every rule off the list, and bcmgenetopen calls it on each ifup. Every rule the user configured is silently lost...

UBUNTU-CVE-2026-98206

In the Linux kernel, the following vulnerability has been resolved: Input: cyttsp5 - clamp the HID report size before memcpy The size field comes from the device and is used as the memcpy length into responsebuf, which is CYMAXINPUT bytes...

UBUNTU-CVE-2026-98319

In the Linux kernel, the following vulnerability has been resolved: drm: Fix drmpendingvblankevent leak in error path for outfenceptr When an outfenceptr is provided but DRMMODEPAGEFLIPEVENT is not set, a drmpendingvblankevent will be allocated. If later, there is an allocation failure or another...

UBUNTU-CVE-2026-98349

In the Linux kernel, the following vulnerability has been resolved: wifi: libipw: reject too-short beacon and probe responses libipwprocessproberesponse and the libipwnetworkinit call it makes assume the frame contains the full 36-byte beacon and probe response prefix, but the ipw2100 and ipw2200...

UBUNTU-CVE-2026-98357

In the Linux kernel, the following vulnerability has been resolved: IB/isert: wait for deferred control PDU completions before releasing the connection isertsenddone hands ISTATESENDTASKMGTRSP, ISTATESENDREJECT and ISTATESENDTEXTRSP completions off to isertcompwq and returns. The work item then...

UBUNTU-CVE-2026-98235

In the Linux kernel, the following vulnerability has been resolved: net/sched: actapi: release tail references on DELACTION failure A batched RTMDELACTION request takes a temporary reference on each action before attempting any deletion. tcfactiondelete clears each processed slot and drops its...

UBUNTU-CVE-2026-98263

In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: rt712-sdca-dmic: fix uninitialized streamconfig-type streamconfig is not initialized before being passed to sdwstreamaddslave. The type field may contain garbage and is later copied to stream-type by sdwconfigstream...

UBUNTU-CVE-2026-98331

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: unlist vifs when their netdev is unregistered mac80211 only removes vifs from the local-interfaces list when an interface is removed via ieee80211ifremove, before it unregisters the netdev. However, it's possible...

UBUNTU-CVE-2026-98310

In the Linux kernel, the following vulnerability has been resolved: drm/xe/shrinker: Take a runtime PM ref before shrinking non-system memory xeshrinkerwalk walks the SYSTEM and TT LRUs without a runtime PM reference. Shrinking a bo outside system memory invalidates its GPU mappings, which needs...

UBUNTU-CVE-2026-98359

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Reject unregistering netdevs in ibgetethspeed ibdevicegetnetdev intentionally returns a referenced netdevice even when it is unregistering, so matching and cleanup callers can still find the association. The reference...

UBUNTU-CVE-2026-98320

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: hold reference on ct until flow is released nfctput releases the ct-ext area inmediately, the rcu typesafe semantics also allow to refer to the wrong conntrack from the flowtable datapath. Hold reference on ...

UBUNTU-CVE-2026-98203

In the Linux kernel, the following vulnerability has been resolved: Input: socbuttonarray - check btnsdesc-package.count Check that btnsdesc-package.count is not 0 before accessing btnsdesc-package.elements0...

UBUNTU-CVE-2026-98264

In the Linux kernel, the following vulnerability has been resolved: ALSA: virtio: reset device before deleting virtqueues virtsndremove and virtsndfreeze delete the virtqueues before resetting the device. delvqs frees the vring backing, but does not provide a generic device quiesce operation. In...

UBUNTU-CVE-2026-98369

In the Linux kernel, the following vulnerability has been resolved: xfrm: add missing rcureadlock, skbdstforce and devhold for xfrmtransreinject syzbot reported a suspicious RCU usage warning in ip6pktdrop: WARNING: suspicious RCU usage in ip6pktdrop include/net/addrconf.h:389 suspicious...

UBUNTU-CVE-2026-98251

In the Linux kernel, the following vulnerability has been resolved: openvswitch: avoid reallocating confirmed conntrack labels ovsctgetconnlabels adds the labels extension when a conntrack entry does not have one. Confirmed conntracks can be read locklessly, so adding an extension may reallocate...

UBUNTU-CVE-2026-98323

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Bound fragmented header copies by the remaining length siwgethdr can receive an extended DDP/RDMAP header across more than one TCP callback. The first callback may receive most of the header, while the next one still...

UBUNTU-CVE-2026-98256

In the Linux kernel, the following vulnerability has been resolved: signal: Prevent exec race Hyunwoo debugged the following KASAN UAF splat: BUG: KASAN: slab-use-after-free in sendsignallocked+0xb27/0xba0 Write of size 8 at addr ffff888007ed80c8 by task poc/79 ... Call Trace:...

UBUNTU-CVE-2026-98259

In the Linux kernel, the following vulnerability has been resolved: fs/dax: check zero or empty entry before converting xarray entry Calling daxtofolio with empty entry causes kernel panic below when booting a VM with DAX enabled storage. This patch checks empty entry before calling daxtofolio on...

UBUNTU-CVE-2026-98290

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: avoid socket lock inversion in listener cleanup rfcommsockcleanuplisten closes unaccepted child sockets through rfcommsockclose, which takes the child socket lock before rfcommdlcclose acquires rfcommmutex. The...

UBUNTU-CVE-2026-98295

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: coredump: Quiesce dump work on unregister hcidevcdhandlepktinit arms dumptimeout and coredump producers queue dumprx without holding an hdev reference. Unregister leaves both works live, so disconnecting during an acti...

UBUNTU-CVE-2026-98299

In the Linux kernel, the following vulnerability has been resolved: tcp: do not let tcprmem be set below 4096 We can hit a division by zero crash in tcprcvbufgrow and tcprcvspaceadjust: divide error: 0000 1 PREEMPT SMP RIP: 0010:tcprcvbufgrow+0x187/0x450 net/ipv4/tcpinput.c:939 ... grow =...

UBUNTU-CVE-2026-98191

In the Linux kernel, the following vulnerability has been resolved: wifi: wlcore: release runtime PM ref on regdomain config failure wlcoreregdomainconfig gets a runtime PM reference before sending the regulatory-domain command. When wlcorecmdregdomainconfiglocked fails, the function queues...

UBUNTU-CVE-2026-98270

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: check ras and obj before dereference nbiov79handlerascontrollerintrnobifring dereferences ras and obj without checking either for NULL. Both amdgpurasgetcontext and amdgpurasfindobj can return NULL, e.g. during the...

UBUNTU-CVE-2026-98173

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-after-free of iface in cifstryaddingchannels cifstryaddingchannels iterates ses-ifacelist with listforeachentrysafefrom, which captures the next entry niface under ifacelock. The loop body then drops ifaceloc...

UBUNTU-CVE-2026-98178

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Skip KFD mapping clear before initialization amdgpuamdkfdclearkfdmapping assumes that a non-NULL kfddev has a fully populated node array. This is not true when KFD device initialization fails after probe. For example,...

UBUNTU-CVE-2026-98167

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix server-totalread for compound encrypted PDUs In receiveencryptedstandard, server-totalread is left at the full decrypted frame size when walking sub-PDUs of a compound encrypted frame. As a result,...

UBUNTU-CVE-2026-98169

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential OOB read in smb3enumsnapshots If snapshotarraysize is smaller than GMTTOKENSIZE, smb3enumsnapshots sets retdatalen to sizeofstruct smbsnapshotarray without verifying the actual length of the server's...

UBUNTU-CVE-2026-98165

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: restrict BAR0 fallback read to SR-IOV VFs only The BAR0 fallback read path was introduced as a workaround for SR-IOV VFs where the VRAM aperture is not available during early init. Restrict this workaround to only...

UBUNTU-CVE-2026-98168

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix reparse buffer bounds in cifsqueryreparsepoint In cifsqueryreparsepoint, the start = end check before casting to struct reparsedatabuffer only ensures the start pointer is within the response. It fails to verify...

UBUNTU-CVE-2026-98170

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix OOB struct field reads in movesmb2eatocifs In movesmb2eatocifs, the while srcsize 0 loop condition is insufficient. It allows iteration to continue even if the remaining srcsize is too small to contain a complete...

UBUNTU-CVE-2026-98166

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: fix swapped-out resources never leaving their bulkmove range ttmttswapout returns the number of pages swapped out on success and a negative error code on failure; for a populated ttm it never returns zero. Commit...

UBUNTU-CVE-2026-98174

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix rlist race and missing initialization TCPServerInfo.rlist is allocated via kzalloc which zeros both -next and -prev to NULL instead of pointing to itself, making listempty always return false and listadd...

UBUNTU-CVE-2026-98175

In the Linux kernel, the following vulnerability has been resolved: smb: client: cancel reconnect work in cleandemultiplexinfo cleandemultiplexinfo cancels server-echo delayed work but not server-reconnect, which can cause a use-after-free when the demultiplex thread exits while a reconnect work ...

UBUNTU-CVE-2026-98172

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix smbdconnection leak on cifsgettcpsession error When an RDMA connection is successfully established via smbdgetconnection but cifsgettcpsession later fails e.g. kthreadcreate returns an error, the error path frees...

UBUNTU-CVE-2026-98171

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix nextbuffer UAF and NextCommand bounds in compound PDUs Fix several related bounds checking and pointer lifecycle issues in receiveencryptedstandard's handling of compound encrypted frames: - Clear nextbuffer afte...

UBUNTU-CVE-2026-98177

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Avoid integer underflow in EOP ring size calculation. The low 6 bits of cphqdeopcontrol store the base-2 logarithm of the EOP ring size. This was calculated as orderbase2q-eopringbuffersize / 4 - 1 But orderbase2 can ...

UBUNTU-CVE-2026-98176

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Avoid integer underflow with ffs in EOP ring size calc The low 6 bits of cphqdeopcontrol store the base-2 logarithm of the EOP ring size. This was calculated as ffsq-eopringbuffersize / sizeofunsigned int - 1 - 1 But...

UBUNTU-CVE-2026-104042

A flaw was found in sssd. A local attacker can cause a Denial of Service DoS by sending a crafted Pluggable Authentication Module PAM request containing a zero-length authentication token to the responder socket. Due to missing input validation, the service attempts to read beyond buffer boundari...

UBUNTU-CVE-2026-104043

A flaw was found in SSSD. A local attacker with access to the Name Service Switch NSS responder UNIX socket can trigger an integer underflow by sending a specially crafted request with an undersized packet header. This issue causes an out-of-bounds memory read during packet parsing, crashing the...

UBUNTU-CVE-2026-104039

A flaw was found in SSSD. A local user can cause a denial of service DoS by disrupting system authentication services. When handling Generic Security Services Application Programming Interface GSSAPI authentication in the Pluggable Authentication Module PAM responder, cached connection state is...

UBUNTU-CVE-2026-104040

A flaw was found in SSSD. When configured with the Entra ID identity provider, input lookup names containing single quotes are not properly escaped before being included in Microsoft Graph Open Data Protocol OData queries. A low-privileged local user can exploit this flaw by submitting a crafted...

UBUNTU-CVE-2026-104044

A flaw was found in sssd. A local attacker can trigger a Denial of Service DoS by sending a specially crafted Pluggable Authentication Module PAM request when passkey authentication is enabled. Due to a missing state validation check in passkey Kerberos handling, the PAM responder dereferences an...

UBUNTU-CVE-2026-104041

A flaw was found in SSSD. An unprivileged local user can repeatedly request lookups for nonexistent entries through the Name Service Switch NSS responder. Because the negative cache does not limit the total number of stored entries and only removes expired records when an existing key is rechecke...

UBUNTU-CVE-2026-104032

A flaw was found in SSSD. An unprivileged local user can repeatedly request master automount map updates through the autofs responder due to missing authorization checks. This triggers global cache invalidation and forces repeated lookups to backend directory providers, leading to a Denial of...

UBUNTU-CVE-2026-104036

A flaw was found in SSSD's NFS idmap plugin. When retrieving cached user or group names, the plugin detects if an entry exceeds the destination buffer size but fails to abort before copying data. A local attacker can trigger this vulnerability by requesting identity lookups that resolve to...

UBUNTU-CVE-2026-104038

A flaw was found in sssd. A remote attacker can cause a denial of service DoS by submitting a certificate that lacks an expected Security Identifier SID extension. In deployments configured with SID-based certificate mapping rules, the service fails to verify the presence of the extension before...

UBUNTU-CVE-2026-104033

A flaw was found in SSSD. When configured to enforce account expiration using LDAP Lightweight Directory Access Protocol shadow attributes, SSSD fails to treat an expiration value of zero as an expired account. A user with valid credentials for an expired account can exploit this flaw to bypass...

UBUNTU-CVE-2026-104037

A flaw was found in SSSD. A local attacker can exploit this issue by sending a specially crafted request with an invalid packet length to the autofs responder UNIX socket. This causes an integer underflow and an out-of-bounds memory read, which can crash the responder process and result in a deni...

UBUNTU-CVE-2026-104034

A flaw was found in SSSD. A use-after-free vulnerability exists in the Kerberos Credential Manager KCM responder during Kerberos ticket-granting ticket TGT renewal, where a deferred callback accesses memory that has already been released. An authenticated local user with a renewable Kerberos tick...

UBUNTU-CVE-2026-104035

A flaw was found in SSSD. An issue in the Kerberos Credential Manager KCM responder allows a local user to cause a Denial of Service DoS by maintaining a persistent connection and repeatedly storing and destroying credentials. Because the service fails to release cached objects from memory when...