Unity Linux 20.1070e Security Update: expat (UTSA-2026-016783)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016783 advisory. libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content. Tenable has extracted the preceding description block directly...

CVE-2026-43436

A flaw was found in the Linux kernel's ALSA Advanced Linux Sound Architecture USB-audio driver, specifically within the Scarlett2 mixer quirk. A local attacker could exploit this vulnerability by providing a specially crafted, malformed USB descriptor. This could lead to a NULL dereference in the...

CVE-2026-43431

A flaw was found in the Linux kernel's xhci host controller driver. This vulnerability occurs when the number of port registers counted in xhci-maxports is greater than the ports reported by Supported Protocol capabilities. This can lead to a NULL pointer dereference, causing a kernel crash and...

free5GC's SMF UPI DELETE /upi/v1/upNodesLinks/{ref} panics on AN-node deletion via nil UPF dereference; unauthenticated, state-mutating

Summary free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware same root cause as the broader UPI auth gap reported in free5gc/free5gc887. On top of that, the DELETE /upi/v1/upNodesLinks/upNodeRef handler unconditionally dereferences upNode.UPF after the type-guarde...

CVE-2026-43416

A flaw was found in the Linux kernel. A local user can cause a denial of service DoS by triggering a NULL pointer dereference within the perf subsystem. This occurs when the memory management structure current-mm is prematurely released before the system attempts to retrieve the user callchain,...

GHSA-WWQH-7JM5-GJ7W free5GC's PCF npcf-policyauthorization POST /app-sessions panics on suppFeat=1 with missing AfRoutReq via nil pointer dereference

Summary free5GC's PCF POST /npcf-policyauthorization/v1/app-sessions handler panics on a single authenticated request whose ascReqData.suppFeat == "1" enabling traffic-routing feature negotiation and whose medComponents entries supply an afAppId but NO AfRoutReq. The create path then calls...

free5GC's PCF npcf-policyauthorization POST /app-sessions panics on suppFeat=1 with missing AfRoutReq via nil pointer dereference

Summary free5GC's PCF POST /npcf-policyauthorization/v1/app-sessions handler panics on a single authenticated request whose ascReqData.suppFeat == "1" enabling traffic-routing feature negotiation and whose medComponents entries supply an afAppId but NO AfRoutReq. The create path then calls...

free5GC's PCF npcf-smpolicycontrol POST /sm-policies panics on downstream UDR/OpenAPI 404 via nil pointer dereference

Summary free5GC's PCF POST /npcf-smpolicycontrol/v1/sm-policies handler HandleCreateSmPolicyRequest panics with a nil-pointer dereference when a downstream OpenAPI consumer call UDR lookup returns 404 Not Found and the consumer wrapper returns err != nil together with a nil response struct. The...

CVE-2026-43401

A flaw was found in the Linux kernel's intelpstate component. This vulnerability arises when the system is booted with the "nosmt" parameter, causing a critical error known as a null pointer dereference in the updatecpuqosrequest function. Such an error can lead to system instability and...

CVE-2026-43367

A flaw was found in the Linux kernel's drm/amd component. This vulnerability allows a local attacker to cause a Denial of Service DoS by triggering a NULL pointer dereference during device cleanup on unsupported hardware. This can lead to system instability or a crash, impacting the availability ...

CVE-2026-43364

A flaw was found in the Linux kernel's ublk subsystem. A local user can trigger a NULL pointer dereference by sending an UPDATESIZE command to a ublk device that has been added but not yet started, or one that has been stopped. This occurs due to insufficient state validation before dereferencing...

gitsign --verify panics on empty-certificate PKCS7 and exits 0, bypassing exit-code callers

Summary CertVerifier.Verify in pkg/git/verifier.go unconditionally dereferences certs0 after sd.GetCertificates without checking the slice length. A CMS/PKCS7 signed message with an empty certificate set is a structurally valid DER payload; GetCertificates returns an empty slice with no error,...

CLSA-2026-1778254552 httpd: Fix of 8 CVEs

CVE-2026-24072: modrewrite/modsetenvif: use APEXPRFLAGRESTRICTED in htaccess to prevent reading server-side files via apexpr from .htaccess - CVE-2026-29169: moddavlock: NULL pointer dereference in davgenericrefreshlocks use dpscan instead of dp - CVE-2026-33006: modauthdigest: timing attack —...

EUVD-2026-28742

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces The Scarlett2 mixer quirk in USB-audio driver may hit a NULL dereference when a malformed USB descriptor is passed, since it assumes the presence of an...

EUVD-2026-28719

In the Linux kernel, the following vulnerability has been resolved: scsi: hisisas: Fix NULL pointer exception during userscan userscan invokes updated sasuserscan for channel 0, and if successful, iteratively scans remaining channels 1 to shost-maxchannel via scsiscanhostselected in commit...

EUVD-2026-28707

In the Linux kernel, the following vulnerability has been resolved: cpufreq: intelpstate: Fix NULL pointer dereference in updatecpuqosrequest The updatecpuqosrequest function attempts to initialize the 'freq' variable by dereferencing 'cpudata' before verifying if the 'policy' is valid. This issu...

EUVD-2026-28662

In the Linux kernel, the following vulnerability has been resolved: iio: imu: adis: Fix NULL pointer dereference in adisinit The adisinit function dereferences adis-ops to check if the individual function pointers write, read, reset are NULL, but does not first check if adis-ops itself is NULL...

EUVD-2026-28621

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix NULL pointer dereference in dcn401inithw dcn401inithw assumes that updatebwboundingbox is valid when entering the update path. However, the existing condition: !fams2enable && updatebwboundingbox || freqchang...

EUVD-2026-28619

In the Linux kernel, the following vulnerability has been resolved: interconnect: qcom: sm8450: Fix NULL pointer dereference in icclinknodes The change to dynamic IDs for SM8450 platform interconnects left two links unconverted, fix it to avoid the NULL pointer dereference in runtime, when a...

EUVD-2026-28617

In the Linux kernel, the following vulnerability has been resolved: bpf: reject direct access to nullable PTRTOBUF pointers checkmemaccess matches PTRTOBUF via basetype which strips PTRMAYBENULL, allowing direct dereference without a null check. Map iterator ctx-key and ctx-value are PTRTOBUF |...