CVE-2021-24086-exp

CVE-2021-24086 Esta es una prueba de concepto para CVE-2021-24086 "Vulnerabilidad de denegación de servicio de TCP/IP de Windows", una desreferencia NULL en tcpip.sys corregida por Microsoft en febrero de 2021. Según este tweet, la vulnerabilidad fue encontrada por @piazzt. Se puede activar...

CVE-2026-89570

A flaw was found in the Linux kernel's Compute Express Link CXL subsystem. Lifetime issues with the CXL Machine Check Exception MCE notifier can lead to NULL dereferences and use-after-free vulnerabilities in the MCE handler. This could allow an attacker to cause system instability or a denial of...

CVE-2026-89662

A flaw was found in the Linux kernel's Network File System Daemon NFSD. During client teardown, a race condition can occur where a lock owner is freed while still being referenced, leading to a use-after-free vulnerability. This can result in a NULL dereference, potentially causing a system crash...

CVE-2026-89517

A flaw was found in the Linux kernel's schedext component, which handles core scheduling. When multiple selections on the same core interleave due to a dropped lock, they can corrupt the scheduling state. This corruption can lead to a NULL dereference, tasks remaining active after being dequeued,...

CVE-2026-89679

A flaw was found in the Linux kernel's nfsd component. A remote attacker can exploit this by sending a specially crafted SETATTR request that includes specific delegation timestamp attributes and a special NFSv4 state ID. This triggers a null dereference, leading to a kernel crash and a Denial of...

CVE-2026-89544

A flaw was found in the Linux kernel's SUNRPC component. Multiple defects in the gssxdecoptionarray XDR option-array decoder's error handling can lead to a NULL dereference, a reference count leak, and a use-after-free vulnerability. An attacker could potentially exploit these issues by providing...

CVE-2026-89711

In the Linux kernel, the following vulnerability has been resolved: NFSD: remove flawed WARNONONCE from nfsdmodecheck The header for commit e75b23f9e323 "nfsd: check dcanlookup in fhverify of directories" details the assumption that justified adding the WARNONONCE to nfsdmodecheck, that assumptio...

AZL-100898 CVE-2026-89709 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: lockd, nfsd: RCU-protect nlmsvcops dispatch nlmsvcops is published by nfsdlockdinit and cleared by nfsdlockdshutdown with plain stores, while lockd dereferences it unguarded from dispatch sites in fs/lockd/svcsubs.c. The pointer...

CVE-2026-89696

In the Linux kernel, the following vulnerability has been resolved: nfsd: block non-SAVEFH ops after FOREIGN PUTFH to prevent NULL deref When CONFIGNFSDV42INTERSSC is enabled, nfsd4putfh can return success with fhdentry and fhexport both NULL if fhverify returns nfserrstale and putfh-noverify is...

AZL-100671 CVE-2026-89696 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: nfsd: block non-SAVEFH ops after FOREIGN PUTFH to prevent NULL deref When CONFIGNFSDV42INTERSSC is enabled, nfsd4putfh can return success with fhdentry and fhexport both NULL if fhverify returns nfserrstale and putfh-noverify is...

CVE-2026-89679

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix null dereference in nfsd4setattr for deleg timestamp attrs When a SETATTR request includes FATTR4WORD2TIMEDELEGACCESS or FATTR4WORD2TIMEDELEGMODIFY in the attribute bitmap, nfsd4setattr sets delegattrs=true and calls...

DEBIAN-CVE-2026-89679

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix null dereference in nfsd4setattr for deleg timestamp attrs When a SETATTR request includes FATTR4WORD2TIMEDELEGACCESS or FATTR4WORD2TIMEDELEGMODIFY in the attribute bitmap, nfsd4setattr sets delegattrs=true and calls...

DEBIAN-CVE-2026-89662

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent lock owner use-after-free during client teardown destroyclient releases a client's open owners, but a lock owner whose only reference is a blocked lock nbl stays on clownerstrhashtbl. clienthasstate does not count a...

CVE-2026-89662

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent lock owner use-after-free during client teardown destroyclient releases a client's open owners, but a lock owner whose only reference is a blocked lock nbl stays on clownerstrhashtbl. clienthasstate does not count a...

CVE-2026-89592

In the Linux kernel, the following vulnerability has been resolved: accel/rocket: fix NULL dereference and integer overflow in rocketjobpush rocketjobpush allocates a temporary array to hold all input and output GEM object pointers: bos = kvmallocarrayjob-inbocount + job-outbocount, sizeofvoid ,...

CVE-2026-89570

In the Linux kernel, the following vulnerability has been resolved: cxl/mce: Make the MCE notifier per-region Flavien Solt reported lifetime issues with the CXL MCE notifier, which can lead to NULL dereferences and use-after-free in the MCE handler. The notifier was registered per memory device a...

DEBIAN-CVE-2026-89570

In the Linux kernel, the following vulnerability has been resolved: cxl/mce: Make the MCE notifier per-region Flavien Solt reported lifetime issues with the CXL MCE notifier, which can lead to NULL dereferences and use-after-free in the MCE handler. The notifier was registered per memory device a...

AZL-100190 CVE-2026-89561 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: ipv6: rpl: fix NULL dereference of idev in ipv6rplsrhrcv ipv6rplsrhrcv dereferences idev from in6devget without a NULL check when reading idev-cnf.rplsegenabled. When the device's MTU drops below IPV6MINMTU, addrconfifdown clears...

DEBIAN-CVE-2026-89544

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: fix gssxdecoptionarray error path bugs Four coupled defects in the gssx XDR option-array decoder make the error paths unsafe: a NULL deref in the caller, a refcount leak on the decoded groupinfo, and a latent use-after-fr...

CVE-2026-89544

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: fix gssxdecoptionarray error path bugs Four coupled defects in the gssx XDR option-array decoder make the error paths unsafe: a NULL deref in the caller, a refcount leak on the decoded groupinfo, and a latent use-after-fr...