Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the stmmac driver, where a null pointer derefrence exception may occur when RX memory is exhausted...

PT-2026-44233

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference can occur in the stmmac driver when RX memory is exhausted. The driver uses a shared ring array of DMA descriptors to coordinate between the CPU and MAC. The...

PT-2026-44241

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A null pointer dereference occurs in the papr hvpipe dev create handle function. This issue was introduced when the function was converted to use FD PREPARE, which caused the src info...

UBUNTU-CVE-2026-47335

Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor notifications. The bug can be triggered by an unprivileged local user. This can lead to a kernel panic...

UBUNTU-CVE-2026-47337

Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling of AFINET/AFINET6 socket mediation. The bug can be triggered by an unprivileged local user. This can lead to a kernel oops...

AlmaLinux 10 : httpd (ALSA-2026:21433)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:21433 advisory. httpd: modproxyajp: heap-based buffer over-read and memory disclosure in ajpparsedata CVE-2026-34059 httpd: modproxyajp: heap-based buffer over-read due...

CVE-2026-45966

A flaw was found in the AppArmor security module within the Linux kernel. This vulnerability occurs when the system processes file descriptors, which are references to open files or other I/O resources, using a specific inter-process communication mechanism called SCMRIGHTS. A missing check for...

CVE-2026-45965

A flaw was found in the AppArmor security module of the Linux kernel. When the exportbinary parameter is disabled at runtime, a previously loaded profile that is subsequently replaced can lead to a NULL pointer dereference. This occurs when the system attempts to resolve symbolic links to raw dat...

CVE-2026-45968

A flaw was found in the Linux kernel's cpuidle subsystem. On certain PowerNV systems, when only a single idle state is available, the cpuidle ladder governor may incorrectly treat state 1 as usable. This can lead to an out-of-bounds index being passed, causing a NULL enter callback to be invoked...

CVE-2026-45978

A flaw was found in the Linux kernel's Greybus Lights subsystem. This vulnerability occurs when the gblightslightconfig function attempts to store a channel count before successfully allocating the corresponding channels array. If the memory allocation fails, a subsequent cleanup operation can tr...

CVE-2026-45982

A flaw was found in the Linux kernel. A NULL pointer dereference in the acpievaddressspacedispatch function could allow a local attacker to cause a denial of service DoS by triggering a missed execution path. This vulnerability arises from an incomplete check in the Advanced Configuration and Pow...

httpd: mod_proxy_ajp: heap-based buffer over-read due to missing null-termination check

A flaw was found in the modproxyajp module of httpd. When processing AJP Apache JServ Protocol messages, the server fails to properly check if a string is null-terminated before attempting to read it, allowing an attacker or a malformed request to cause a heap-based buffer over-read. This issue...

httpd: mod_authn_socache: NULL pointer dereference can cause a child process crash

A flaw was found in the modauthnsocache module of httpd. This vulnerability allows an unauthenticated remote user to crash a child process due to a NULL pointer dereference when the server is operating in a caching forward proxy configuration...

CVE-2026-44710

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, src/device.c passed the return values of udisksdrivegetserial, udisksdrivegetvendor, and udisksdrivegetmodel directly to strcmp without NULL checks. The GIO/UDisks API documentation states these...

httpd: mod_authn_socache: NULL pointer dereference can cause a child process crash

A flaw was found in the modauthnsocache module of httpd. This vulnerability allows an unauthenticated remote user to crash a child process due to a NULL pointer dereference when the server is operating in a caching forward proxy configuration...

httpd: mod_proxy_ajp: heap-based buffer over-read due to missing null-termination check

A flaw was found in the modproxyajp module of httpd. When processing AJP Apache JServ Protocol messages, the server fails to properly check if a string is null-terminated before attempting to read it, allowing an attacker or a malformed request to cause a heap-based buffer over-read. This issue...

CVE-2026-46020

A flaw was found in the Linux kernel's DAMON Data Access MONitor core. A privileged local user can exploit this vulnerability by providing an invalid node ID to damosquotagoal-nid for nodememused,freebp via the DAMON user-space tool. This improper validation can lead to an out-of-bounds memory...

CVE-2026-46024

A flaw was found in the Linux kernel's libceph component. A remote attacker could send a specially crafted authentication reply message to trigger a null pointer dereference. This vulnerability can lead to a system crash, resulting in a Denial of Service DoS for affected systems. Mitigation To...

CVE-2026-44710 pam_usb: NULL pointer dereference from UDisks device fields causes PAM crash and login denial-of-service

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, src/device.c passed the return values of udisksdrivegetserial, udisksdrivegetvendor, and udisksdrivegetmodel directly to strcmp without NULL checks. The GIO/UDisks API documentation states these...

CVE-2026-44710

pam_usb for Linux is affected by a NULL pointer dereference in src/device.c prior to 0.8.7, where return values from udisks_drive_get_serial(), udisks_drive_get_vendor(), and udisks_drive_get_model() were passed directly to strcmp() without NULL checks. The GIO/UDisks API can return NULL for thes...