CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-27038 – clk: Fix clk_core_get NULL dereference
https://notcve.org/view.php?id=CVE-2024-27038
In the Linux kernel, the following vulnerability has been resolved: clk: Fix clk_core_get NULL dereference It is possible for clk_core_get to dereference a NULL in the following sequence: clk_core_get() of_clk_get_hw_from_clkspec() __of_clk_get_hw_from_provider() __clk_get_hw() __clk_get_hw() can return NULL which is dereferenced by clk_core_get() at hw->core. Prior to commit dde4eff47c82 ("clk: Look for parents with clkdev based clk_lookups") the check IS_ERR_OR_NULL() was performed which would have caught the NULL. Reading the description of this function it talks about returning NULL but that cannot be so at the moment. Update the function to check for hw before dereferencing it and return NULL if hw is NULL. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: clk: corrige la desreferencia de clk_core_get NULL Es posible que clk_core_get elimine la referencia a un NULL en la siguiente secuencia: clk_core_get() of_clk_get_hw_from_clkspec() __of_clk_get_hw_from_provider() __clk_get_hw() __clk_get_hw() puede devolver NULL que es desreferenciado por clk_core_get() en hw->core. Antes de confirmar dde4eff47c82 ("clk: buscar padres con clk_lookups basado en clkdev") se realizó la verificación IS_ERR_OR_NULL() que habría detectado el NULL. Leyendo la descripción de esta función se habla de devolver NULL pero eso no puede ser así por el momento. Actualice la función para verificar hw antes de eliminar la referencia y devuelva NULL si hw es NULL. • https://git.kernel.org/stable/c/dde4eff47c82c52a72af333d9e55370eee6d95d6 https://git.kernel.org/stable/c/d7ae7d1265686b55832a445b1db8cdd69738ac07 https://git.kernel.org/stable/c/239174535dba11f7b83de0eaaa27909024f8c185 https://git.kernel.org/stable/c/0efb9ef6fb95384ba631d6819e66f10392aabfa2 https://git.kernel.org/stable/c/a8b2b26fdd011ebe36d68a9a321ca45801685959 https://git.kernel.org/stable/c/a5d9b1aa61b401867b9066d54086b3e4ee91f8ed https://git.kernel.org/stable/c/c554badcae9c45b737a22d23454170c6020b90e6 https://git.kernel.org/stable/c/6f073b24a9e2becd25ac4505a9780a87e •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2024-27037 – clk: zynq: Prevent null pointer dereference caused by kmalloc failure
https://notcve.org/view.php?id=CVE-2024-27037
In the Linux kernel, the following vulnerability has been resolved: clk: zynq: Prevent null pointer dereference caused by kmalloc failure The kmalloc() in zynq_clk_setup() will return null if the physical memory has run out. As a result, if we use snprintf() to write data to the null address, the null pointer dereference bug will happen. This patch uses a stack variable to replace the kmalloc(). En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: clk: zynq: evita la desreferencia del puntero nulo causada por una falla de kmalloc. El kmalloc() en zynq_clk_setup() devolverá nulo si la memoria física se ha agotado. Como resultado, si usamos snprintf() para escribir datos en la dirección nula, se producirá el error de desreferencia del puntero nulo. • https://git.kernel.org/stable/c/0ee52b157b8ed88550ddd6291e54bb4bfabde364 https://git.kernel.org/stable/c/01511ac7be8e45f80e637f6bf61af2d3d2dee9db https://git.kernel.org/stable/c/8c4889a9ea861d7be37463c10846eb75e1b49c9d https://git.kernel.org/stable/c/0801c893fd48cdba66a3c8f44c3fe43cc67d3b85 https://git.kernel.org/stable/c/ca976c6a592f789700200069ef9052493c0b73d8 https://git.kernel.org/stable/c/58a946ab43501f2eba058d24d96af0ad1122475b https://git.kernel.org/stable/c/7938e9ce39d6779d2f85d822cc930f73420e54a6 • CWE-476: NULL Pointer Dereference •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2024-27036 – cifs: Fix writeback data corruption
https://notcve.org/view.php?id=CVE-2024-27036
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix writeback data corruption cifs writeback doesn't correctly handle the case where cifs_extend_writeback() hits a point where it is considering an additional folio, but this would overrun the wsize - at which point it drops out of the xarray scanning loop and calls xas_pause(). The problem is that xas_pause() advances the loop counter - thereby skipping that page. What needs to happen is for xas_reset() to be called any time we decide we don't want to process the page we're looking at, but rather send the request we are building and start a new one. Fix this by copying and adapting the netfslib writepages code as a temporary measure, with cifs writeback intending to be offloaded to netfslib in the near future. This also fixes the issue with the use of filemap_get_folios_tag() causing retry of a bunch of pages which the extender already dealt with. This can be tested by creating, say, a 64K file somewhere not on cifs (otherwise copy-offload may get underfoot), mounting a cifs share with a wsize of 64000, copying the file to it and then comparing the original file and the copy: dd if=/dev/urandom of=/tmp/64K bs=64k count=1 mount //192.168.6.1/test /mnt -o user=...,pass=...,wsize=64000 cp /tmp/64K /mnt/64K cmp /tmp/64K /mnt/64K Without the fix, the cmp fails at position 64000 (or shortly thereafter). En el kernel de Linux, se resolvió la siguiente vulnerabilidad: cifs: corrige la corrupción de datos de reescritura cifs writeback no maneja correctamente el caso en el que cifs_extend_writeback() llega a un punto en el que está considerando una publicación adicional, pero esto sobrepasaría el tamaño de wsize - en momento en el que sale del ciclo de escaneo de xarray y llama a xas_pause(). • https://git.kernel.org/stable/c/d08089f649a0cfb2099c8551ac47eef0cc23fdf2 https://git.kernel.org/stable/c/e45deec35bf7f1f4f992a707b2d04a8c162f2240 https://git.kernel.org/stable/c/65f2ced695982ccd516196d0a9447d85dbe2eed5 https://git.kernel.org/stable/c/844b4e132f57f1333dc79feaa035075a096762e4 https://git.kernel.org/stable/c/f3dc1bdb6b0b0693562c7c54a6c28bafa608ba3c •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2024-27035 – f2fs: compress: fix to guarantee persisting compressed blocks by CP
https://notcve.org/view.php?id=CVE-2024-27035
In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix to guarantee persisting compressed blocks by CP If data block in compressed cluster is not persisted with metadata during checkpoint, after SPOR, the data may be corrupted, let's guarantee to write compressed page by checkpoint. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: f2fs: compress: corrección para garantizar la persistencia de los bloques comprimidos por CP. Si el bloque de datos en el clúster comprimido no persiste con los metadatos durante el punto de control, después de SPOR, los datos pueden estar dañados, garanticemos que escribir página comprimida por punto de control. • https://git.kernel.org/stable/c/4c8ff7095bef64fc47e996a938f7d57f9e077da3 https://git.kernel.org/stable/c/e54cce8137258a550b49cae45d09e024821fb28d https://git.kernel.org/stable/c/82704e598d7b33c7e45526e34d3c585426319bed https://git.kernel.org/stable/c/c3311694b9bcced233548574d414c91d39214684 https://git.kernel.org/stable/c/57e8b17d0522c8f4daf0c4d9969b4d7358033532 https://git.kernel.org/stable/c/8a430dd49e9cb021372b0ad91e60aeef9c6ced00 •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2024-27034 – f2fs: compress: fix to cover normal cluster write with cp_rwsem
https://notcve.org/view.php?id=CVE-2024-27034
In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix to cover normal cluster write with cp_rwsem When we overwrite compressed cluster w/ normal cluster, we should not unlock cp_rwsem during f2fs_write_raw_pages(), otherwise data will be corrupted if partial blocks were persisted before CP & SPOR, due to cluster metadata wasn't updated atomically. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: f2fs: compress: corrección para cubrir la escritura normal del clúster con cp_rwsem Cuando sobrescribimos el clúster comprimido con el clúster normal, no debemos desbloquear cp_rwsem durante f2fs_write_raw_pages(); de lo contrario, los datos se dañarán si Los bloques parciales persistieron antes de CP y SPOR, debido a que los metadatos del clúster no se actualizaron atómicamente. • https://git.kernel.org/stable/c/4c8ff7095bef64fc47e996a938f7d57f9e077da3 https://git.kernel.org/stable/c/7d420eaaa18ec8e2bb4eeab8c65c00492ef6f416 https://git.kernel.org/stable/c/542c8b3c774a480bfd0804291a12f6f2391b0cd1 https://git.kernel.org/stable/c/75abfd61392b1db391bde6d738a30d685b843286 https://git.kernel.org/stable/c/2b1b14d9fc94b8feae20808684c8af28ec80f45b https://git.kernel.org/stable/c/52982edfcefd475cc34af663d5c47c0cddaa5739 https://git.kernel.org/stable/c/fd244524c2cf07b5f4c3fe8abd6a99225c76544b •