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CVSS: -EPSS: 0%CPEs: 4EXPL: 0

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix use-after-free after failure to create a snapshot At ioctl.c:create_snapshot(), we allocate a pending snapshot structure and then attach it to the transaction's list of pending snapshots. After that we call btrfs_commit_transaction(), and if that returns an error we jump to 'fail' label, where we kfree() the pending snapshot structure. This can result in a later use-after-free of the pending snapshot: 1) We allocated the pending snapshot and added it to the transaction's list of pending snapshots; 2) We call btrfs_commit_transaction(), and it fails either at the first call to btrfs_run_delayed_refs() or btrfs_start_dirty_block_groups(). In both cases, we don't abort the transaction and we release our transaction handle. We jump to the 'fail' label and free the pending snapshot structure. We return with the pending snapshot still in the transaction's list; 3) Another task commits the transaction. • https://git.kernel.org/stable/c/7e4c72dbaf62f8978af8321a24dbd35566d3a78a https://git.kernel.org/stable/c/a7b717fa15165d3d9245614680bebc48a52ac05d https://git.kernel.org/stable/c/9372fa1d73da5f1673921e365d0cd2c27ec7adc2 https://git.kernel.org/stable/c/28b21c558a3753171097193b6f6602a94169093a •

CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0

In the Linux kernel, the following vulnerability has been resolved: mm/kmemleak: avoid scanning potential huge holes When using devm_request_free_mem_region() and devm_memremap_pages() to add ZONE_DEVICE memory, if requested free mem region's end pfn were huge(e.g., 0x400000000), the node_end_pfn() will be also huge (see move_pfn_range_to_zone()). Thus it creates a huge hole between node_start_pfn() and node_end_pfn(). We found on some AMD APUs, amdkfd requested such a free mem region and created a huge hole. In such a case, following code snippet was just doing busy test_bit() looping on the huge hole. for (pfn = start_pfn; pfn < end_pfn; pfn++) { struct page *page = pfn_to_online_page(pfn); if (!page) continue; ... } So we got a soft lockup: watchdog: BUG: soft lockup - CPU#6 stuck for 26s! [bash:1221] CPU: 6 PID: 1221 Comm: bash Not tainted 5.15.0-custom #1 RIP: 0010:pfn_to_online_page+0x5/0xd0 Call Trace: ? • https://git.kernel.org/stable/c/d3533ee20e9a0e2e8f60384da7450d43d1c63d1a https://git.kernel.org/stable/c/352715593e81b917ce1b321e794549815b850134 https://git.kernel.org/stable/c/a5389c80992f0001ee505838fe6a8b20897ce96e https://git.kernel.org/stable/c/cebb0aceb21ad91429617a40e3a17444fabf1529 https://git.kernel.org/stable/c/c10a0f877fe007021d70f9cada240f42adc2b5db •

CVSS: -EPSS: 0%CPEs: 4EXPL: 0

In the Linux kernel, the following vulnerability has been resolved: ext4: fix error handling in ext4_fc_record_modified_inode() Current code does not fully takes care of krealloc() error case, which could lead to silent memory corruption or a kernel bug. This patch fixes that. Also it cleans up some duplicated error handling logic from various functions in fast_commit.c file. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: ext4: corrige el manejo de errores en ext4_fc_record_modified_inode() El código actual no soluciona completamente el caso de error de krealloc(), lo que podría provocar una corrupción silenciosa de la memoria o un error del kernel. Este parche soluciona eso. También limpia alguna lógica de manejo de errores duplicada de varias funciones en el archivo fast_commit.c. • https://git.kernel.org/stable/c/62e46e0ffc02daa8fcfc02f7a932cc8a19601b19 https://git.kernel.org/stable/c/1b6762ecdf3cf12113772427c904aa3c420a1802 https://git.kernel.org/stable/c/14aa3f49c7fc6424763f4323bfbc3a807b0727dc https://git.kernel.org/stable/c/cdce59a1549190b66f8e3fe465c2b2f714b98a94 •

CVSS: -EPSS: 0%CPEs: 9EXPL: 0

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: refactor malicious adv data check Check for out-of-bound read was being performed at the end of while num_reports loop, and would fill journal with false positives. Added check to beginning of loop processing so that it doesn't get checked after ptr has been advanced. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: Bluetooth: refactorización de verificación de datos publicitarios maliciosos. Se estaba realizando una verificación de lectura fuera de los límites al final del bucle while num_reports y llenaría el diario con falsos positivos. Se agregó una verificación al comienzo del procesamiento del bucle para que no se verifique después de que se haya avanzado ptr. • https://git.kernel.org/stable/c/305e92f525450f3e1b5f5c9dc7eadb152d66a082 https://git.kernel.org/stable/c/7889b38a7f21ed19314f83194622b195d328465c https://git.kernel.org/stable/c/5a539c08d743d9910631448da78af5e961664c0e https://git.kernel.org/stable/c/8819f93cd4a443dfe547aa622b21f723757df3fb https://git.kernel.org/stable/c/835d3706852537bf92eb23eb8635b8dee0c0aa67 https://git.kernel.org/stable/c/83d5196b65d1b29e27d7dd16a3b9b439fb1d2dba https://git.kernel.org/stable/c/bcea886771c3f22a590c8c8b9139a107bd7f1e1c https://git.kernel.org/stable/c/5c968affa804ba98c3c603f37ffea6fba •

CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0

In the Linux kernel, the following vulnerability has been resolved: usb-storage: alauda: Check whether the media is initialized The member "uzonesize" of struct alauda_info will remain 0 if alauda_init_media() fails, potentially causing divide errors in alauda_read_data() and alauda_write_lba(). - Add a member "media_initialized" to struct alauda_info. - Change a condition in alauda_check_media() to ensure the first initialization. - Add an error check for the return value of alauda_init_media(). En el kernel de Linux, se resolvió la siguiente vulnerabilidad: usb-storage: alauda: compruebe si el medio está inicializado. El miembro "uzonesize" de la estructura alauda_info permanecerá 0 si alauda_init_media() falla, lo que podría provocar errores de división en alauda_read_data() y alauda_write_lba(). - Agregue un miembro "media_initialized" a la estructura alauda_info. - Cambiar una condición en alauda_check_media() para asegurar la primera inicialización. - Agregue una verificación de errores para el valor de retorno de alauda_init_media(). • https://git.kernel.org/stable/c/e80b0fade09ef1ee67b0898d480d4c588f124d5f https://git.kernel.org/stable/c/e0aab7b07a9375337847c9d74a5ec044071e01c8 https://git.kernel.org/stable/c/51fe16c058acb22f847e69bc598066ed0bcd5c15 https://git.kernel.org/stable/c/f68820f1256b21466ff094dd97f243b7e708f9c1 https://git.kernel.org/stable/c/3eee13ab67f65606faa66e0c3c729e4f514838fd https://git.kernel.org/stable/c/e0e2eec76920a133dd49a4fbe4656d83596a1361 https://git.kernel.org/stable/c/2cc32639ec347e3365075b130f9953ef16cb13f1 https://git.kernel.org/stable/c/24bff7f714bdff97c2a75a0ff6a368cdf • CWE-457: Use of Uninitialized Variable •