CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-35846 – mm: zswap: fix shrinker NULL crash with cgroup_disable=memory
https://notcve.org/view.php?id=CVE-2024-35846
In the Linux kernel, the following vulnerability has been resolved: mm: zswap: fix shrinker NULL crash with cgroup_disable=memory Christian reports a NULL deref in zswap that he bisected down to the zswap shrinker. The issue also cropped up in the bug trackers of libguestfs [1] and the Red Hat bugzilla [2]. The problem is that when memcg is disabled with the boot time flag, the zswap shrinker might get called with sc->memcg == NULL. This is okay in many places, like the lruvec operations. But it crashes in memcg_page_state() - which is only used due to the non-node accounting of cgroup's the zswap memory to begin with. Nhat spotted that the memcg can be NULL in the memcg-disabled case, and I was then able to reproduce the crash locally as well. [1] https://github.com/libguestfs/libguestfs/issues/139 [2] https://bugzilla.redhat.com/show_bug.cgi?id=2275252 En el kernel de Linux, se resolvió la siguiente vulnerabilidad: mm: zswap: corrige el bloqueo NULL del reductor con cgroup_disable=memory. • https://git.kernel.org/stable/c/b5ba474f3f518701249598b35c581b92a3c95b48 https://git.kernel.org/stable/c/b0fdabc908a7f81d12382c87ca9e46a9c2e14042 https://git.kernel.org/stable/c/682886ec69d22363819a83ddddd5d66cb5c791e1 •
CVSS: 9.1EPSS: 0%CPEs: 7EXPL: 0CVE-2024-35845 – wifi: iwlwifi: dbg-tlv: ensure NUL termination
https://notcve.org/view.php?id=CVE-2024-35845
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: dbg-tlv: ensure NUL termination The iwl_fw_ini_debug_info_tlv is used as a string, so we must ensure the string is terminated correctly before using it. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: iwlwifi: dbg-tlv: asegurar terminación NUL. El iwl_fw_ini_debug_info_tlv se usa como una cadena, por lo que debemos asegurarnos de que la cadena termine correctamente antes de usarla. • https://git.kernel.org/stable/c/a9248de42464e546b624e3fc6a8b04b991af3591 https://git.kernel.org/stable/c/fabe2db7de32a881e437ee69db32e0de785a6209 https://git.kernel.org/stable/c/96aa40761673da045a7774f874487cdb50c6a2f7 https://git.kernel.org/stable/c/c855a1a5b7e3de57e6b1b29563113d5e3bfdb89a https://git.kernel.org/stable/c/783d413f332a3ebec916664b366c28f58147f82c https://git.kernel.org/stable/c/fec14d1cdd92f340b9ba2bd220abf96f9609f2a9 https://git.kernel.org/stable/c/71d4186d470e9cda7cd1a0921b4afda737c6f641 https://git.kernel.org/stable/c/ea1d166fae14e05d49ffb0ea9fcd4658f • CWE-134: Use of Externally-Controlled Format String •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2024-35844 – f2fs: compress: fix reserve_cblocks counting error when out of space
https://notcve.org/view.php?id=CVE-2024-35844
In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix reserve_cblocks counting error when out of space When a file only needs one direct_node, performing the following operations will cause the file to be unrepairable: unisoc # ./f2fs_io compress test.apk unisoc #df -h | grep dm-48 /dev/block/dm-48 112G 112G 1.2M 100% /data unisoc # ./f2fs_io release_cblocks test.apk 924 unisoc # df -h | grep dm-48 /dev/block/dm-48 112G 112G 4.8M 100% /data unisoc # dd if=/dev/random of=file4 bs=1M count=3 3145728 bytes (3.0 M) copied, 0.025 s, 120 M/s unisoc # df -h | grep dm-48 /dev/block/dm-48 112G 112G 1.8M 100% /data unisoc # ./f2fs_io reserve_cblocks test.apk F2FS_IOC_RESERVE_COMPRESS_BLOCKS failed: No space left on device adb reboot unisoc # df -h | grep dm-48 /dev/block/dm-48 112G 112G 11M 100% /data unisoc # ./f2fs_io reserve_cblocks test.apk 0 This is because the file has only one direct_node. • https://git.kernel.org/stable/c/c75488fb4d82b697f381f855bf5b16779df440aa https://git.kernel.org/stable/c/fa3ac8b1a227d9b470b87972494293348b5839ee https://git.kernel.org/stable/c/889846dfc8ee2cf31148a44bfd2faeb2faadc685 https://git.kernel.org/stable/c/f0bf89e84c3afb79d7a3a9e4bc853ad6a3245c0a https://git.kernel.org/stable/c/569c198c9e2093fd29cc071856a4e548fda506bc https://git.kernel.org/stable/c/fc0aed88afbf6f606205129a7466eebdf528e3f3 https://git.kernel.org/stable/c/2f6d721e14b69d6e1251f69fa238b48e8374e25f http://www.openwall.com/lists/oss-security/2024/05/ •
CVSS: 6.8EPSS: 0%CPEs: 2EXPL: 0CVE-2024-35843 – iommu/vt-d: Use device rbtree in iopf reporting path
https://notcve.org/view.php?id=CVE-2024-35843
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Use device rbtree in iopf reporting path The existing I/O page fault handler currently locates the PCI device by calling pci_get_domain_bus_and_slot(). This function searches the list of all PCI devices until the desired device is found. To improve lookup efficiency, replace it with device_rbtree_find() to search the device within the probed device rbtree. The I/O page fault is initiated by the device, which does not have any synchronization mechanism with the software to ensure that the device stays in the probed device tree. Theoretically, a device could be released by the IOMMU subsystem after device_rbtree_find() and before iopf_get_dev_fault_param(), which would cause a use-after-free problem. Add a mutex to synchronize the I/O page fault reporting path and the IOMMU release device path. This lock doesn't introduce any performance overhead, as the conflict between I/O page fault reporting and device releasing is very rare. • https://git.kernel.org/stable/c/3d39238991e745c5df85785604f037f35d9d1b15 https://git.kernel.org/stable/c/def054b01a867822254e1dda13d587f5c7a99e2a https://access.redhat.com/security/cve/CVE-2024-35843 https://bugzilla.redhat.com/show_bug.cgi?id=2281276 • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0CVE-2024-35831 – io_uring: Fix release of pinned pages when __io_uaddr_map fails
https://notcve.org/view.php?id=CVE-2024-35831
In the Linux kernel, the following vulnerability has been resolved: io_uring: Fix release of pinned pages when __io_uaddr_map fails Looking at the error path of __io_uaddr_map, if we fail after pinning the pages for any reasons, ret will be set to -EINVAL and the error handler won't properly release the pinned pages. I didn't manage to trigger it without forcing a failure, but it can happen in real life when memory is heavily fragmented. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: io_uring: corregida la liberación de páginas fijadas cuando falla __io_uaddr_map. Mirando la ruta de error de __io_uaddr_map, si fallamos después de fijar las páginas por cualquier motivo, ret se establecerá en -EINVAL y el El controlador de errores no libera correctamente las páginas fijadas. No logré activarlo sin forzar un fallo, pero puede suceder en la vida real cuando la memoria está muy fragmentada. A flaw was found in the `io_uring` subsystem in the Linux kernel, where pinned pages are not properly released if the `__io_uaddr_map` function fails. • https://git.kernel.org/stable/c/223ef474316466e9f61f6e0064f3a6fe4923a2c5 https://git.kernel.org/stable/c/3f3164ce6396138747984ee9e61158e248246300 https://git.kernel.org/stable/c/0b6f39c175ba5f0ef72bdb3b9d2a06ad78621d62 https://git.kernel.org/stable/c/712e2c8415f55a4a4ddaa98a430b87f624109f69 https://git.kernel.org/stable/c/4d376d7ad62b6a8e8dfff56b559d9d275e5b9b3a https://git.kernel.org/stable/c/67d1189d1095d471ed7fa426c7e384a7140a5dd7 https://access.redhat.com/security/cve/CVE-2024-35831 https://bugzilla.redhat.com/show_bug.cgi?id=2281173 • CWE-402: Transmission of Private Resources into a New Sphere ('Resource Leak') •