CVSS: -EPSS: 0%CPEs: 10EXPL: 0CVE-2024-36015 – ppdev: Add an error check in register_device
https://notcve.org/view.php?id=CVE-2024-36015
In the Linux kernel, the following vulnerability has been resolved: ppdev: Add an error check in register_device In register_device, the return value of ida_simple_get is unchecked, in witch ida_simple_get will use an invalid index value. To address this issue, index should be checked after ida_simple_get. When the index value is abnormal, a warning message should be printed, the port should be dropped, and the value should be recorded. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ppdev: agregue una verificación de errores en Register_device. En Register_device, el valor de retorno de ida_simple_get no está marcado, por lo que ida_simple_get usará un valor de índice no válido. Para solucionar este problema, se debe verificar el índice después de ida_simple_get. • https://git.kernel.org/stable/c/9a69645dde1188723d80745c1bc6ee9af2cbe2a7 https://git.kernel.org/stable/c/9c2b46e720d5b083268ca0131f513a90696f3a82 https://git.kernel.org/stable/c/762602796be626cbb6b3a6573e00b9ee7db00c97 https://git.kernel.org/stable/c/65cd017d43f4319a56747d38308b0a24cf57299e https://git.kernel.org/stable/c/b8c6b83cc3adff3ddf403c8c7063fe6d08b2b9d9 https://git.kernel.org/stable/c/d32caf51379a4d71db03d3d4d7c22d27cdf7f68b https://git.kernel.org/stable/c/b65d0410b879af0295d22438a4a32012786d152a https://git.kernel.org/stable/c/df9329247dbbf00f6057e002139ab3fa5 •
CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2024-36014 – drm/arm/malidp: fix a possible null pointer dereference
https://notcve.org/view.php?id=CVE-2024-36014
In the Linux kernel, the following vulnerability has been resolved: drm/arm/malidp: fix a possible null pointer dereference In malidp_mw_connector_reset, new memory is allocated with kzalloc, but no check is performed. In order to prevent null pointer dereferencing, ensure that mw_state is checked before calling __drm_atomic_helper_connector_reset. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/arm/malidp: corrige una posible desreferencia del puntero nulo En malidp_mw_connector_reset, se asigna nueva memoria con kzalloc, pero no se realiza ninguna verificación. Para evitar la desreferenciación del puntero nulo, asegúrese de que mw_state esté marcado antes de llamar a __drm_atomic_helper_connector_reset. • https://git.kernel.org/stable/c/8cbc5caf36ef7a299b5cbedf55f27fd898d700bf https://git.kernel.org/stable/c/b6cc5dd06336ed8bb3a7a1fc5aaf7d5e88bc0818 https://git.kernel.org/stable/c/565d9ad7e5a18eb69ed8b66a9e9bb3f45346520c https://git.kernel.org/stable/c/a5fa5b40a278a3ca978fed64707bd27614adb1eb https://git.kernel.org/stable/c/3e54d4e95120641216dfe91a6c49f116a9f68490 https://git.kernel.org/stable/c/e4b52d49383306ef73fd1bd9102538beebb0fe07 https://git.kernel.org/stable/c/335cc45ef2b81b68be63c698b4f867a530bdf7a5 https://git.kernel.org/stable/c/b77620730f614059db2470e8ebab3e725 •
CVSS: 5.5EPSS: 0%CPEs: 18EXPL: 0CVE-2024-26720 – mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again
https://notcve.org/view.php?id=CVE-2024-26720
In the Linux kernel, the following vulnerability has been resolved: mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again (struct dirty_throttle_control *)->thresh is an unsigned long, but is passed as the u32 divisor argument to div_u64(). On architectures where unsigned long is 64 bytes, the argument will be implicitly truncated. Use div64_u64() instead of div_u64() so that the value used in the "is this a safe division" check is the same as the divisor. Also, remove redundant cast of the numerator to u64, as that should happen implicitly. This would be difficult to exploit in memcg domain, given the ratio-based arithmetic domain_drity_limits() uses, but is much easier in global writeback domain with a BDI_CAP_STRICTLIMIT-backing device, using e.g. vm.dirty_bytes=(1<<32)*PAGE_SIZE so that dtc->thresh == (1<<32) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: mm/writeback: corrige la posible división por cero en wb_dirty_limits(), nuevamente (struct dirty_throttle_control *)->thresh es un largo sin firmar, pero se pasa como argumento del divisor u32 a div_u64(). En arquitecturas donde la longitud sin firmar es de 64 bytes, el argumento se truncará implícitamente. Utilice div64_u64() en lugar de div_u64() para que el valor utilizado en la comprobación "¿Es esta una división segura" sea el mismo que el divisor? Además, elimine la conversión redundante del numerador a u64, ya que eso debería suceder implícitamente. • https://git.kernel.org/stable/c/f6789593d5cea42a4ecb1cbeab6a23ade5ebbba7 https://git.kernel.org/stable/c/c5fec566bef6a027e75c84c35ec970482eb88cea https://git.kernel.org/stable/c/c05d1fe6c19f4df2f0b8cba151a8f0c53b87d878 https://git.kernel.org/stable/c/3f7d325fbbe12e5ade71a1f90759c06ed2d27e3c https://git.kernel.org/stable/c/c593d26fb5d577ef31b6e49a31e08ae3ebc1bc1e https://git.kernel.org/stable/c/253f9ea7e8e53a5176bd80ceb174907b10724c1a https://git.kernel.org/stable/c/1f12e4b3284d6c863f272eb2de0d4248ed211cf4 https://git.kernel.org/stable/c/23a28f5f3f6ca1e4184bd0e9631cd0944 • CWE-369: Divide By Zero •
CVSS: 6.7EPSS: 0%CPEs: 1EXPL: 0CVE-2022-2785 – Arbitrary Memory read in BPF Linux Kernel
https://notcve.org/view.php?id=CVE-2022-2785
There exists an arbitrary memory read within the Linux Kernel BPF - Constants provided to fill pointers in structs passed in to bpf_sys_bpf are not verified and can point anywhere, including memory not owned by BPF. An attacker with CAP_BPF can arbitrarily read memory from anywhere on the system. We recommend upgrading past commit 86f44fcec22c Se presenta una lectura de memoria arbitraria dentro del BPF del Kernel de Linux - Las constantes proporcionadas para rellenar los punteros en los structs pasados a bpf_sys_bpf no son verificados y pueden apuntar a cualquier lugar, incluyendo la memoria que no es propiedad de BPF. Un atacante con CAP_BPF puede leer arbitrariamente la memoria de cualquier parte del sistema. Recomendamos actualizar el commit pasado 86f44fcec22c • https://git.kernel.org/bpf/bpf/c/86f44fcec22c https://lore.kernel.org/bpf/20220816205517.682470-1-zhuyifei%40google.com/T/#t • CWE-125: Out-of-bounds Read •
CVSS: 7.2EPSS: 0%CPEs: 15EXPL: 0CVE-2014-0069 – kernel: cifs: incorrect handling of bogus user pointers during uncached writes
https://notcve.org/view.php?id=CVE-2014-0069
The cifs_iovec_write function in fs/cifs/file.c in the Linux kernel through 3.13.5 does not properly handle uncached write operations that copy fewer than the requested number of bytes, which allows local users to obtain sensitive information from kernel memory, cause a denial of service (memory corruption and system crash), or possibly gain privileges via a writev system call with a crafted pointer. La función cifs_iovec_write en fs/cifs/file.c en el kernel de Linux hasta 3.13.5 no maneja debidamente operaciones de escritura no en caché que copian menos bytes de los solicitados, lo que permite a usuarios locales obtener información sensible de la memoria del kernel, causar una denegación de servicio (corrupción de memoria y caída del sistema) o posiblemente ganar privilegios a través de una llamada al sistema writev con un puntero manipulado. • http://article.gmane.org/gmane.linux.kernel.cifs/9401 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=5d81de8e8667da7135d3a32a964087c0faf5483f http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00026.html http://rhn.redhat.com/errata/RHSA-2014-0328.html http://www.openwall.com/lists/oss-security/2014/02/17/4 http://www.securityfocus.com/bid/65588 https://bugzilla.redhat.com/show_bug.cgi?id=1064253 https://github.com/torvalds/linux/comm • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •