CVSS: -EPSS: %CPEs: 8EXPL: 0CVE-2024-50218 – ocfs2: pass u64 to ocfs2_truncate_inline maybe overflow
https://notcve.org/view.php?id=CVE-2024-50218
In the Linux kernel, the following vulnerability has been resolved: ocfs2: pass u64 to ocfs2_truncate_inline maybe overflow Syzbot reported a kernel BUG in ocfs2_truncate_inline. There are two reasons for this: first, the parameter value passed is greater than ocfs2_max_inline_data_with_xattr, second, the start and end parameters of ocfs2_truncate_inline are "unsigned int". So, we need to add a sanity check for byte_start and byte_len right before ocfs2_truncate_inline() in ocfs2_remove_inode_range(), if they are greater than ocfs2_max_inline_data_with_xattr return -EINVAL. • https://git.kernel.org/stable/c/1afc32b952335f665327a1a9001ba1b44bb76fd9 https://git.kernel.org/stable/c/27d95867bee806cdc448d122bd99f1d8b0544035 https://git.kernel.org/stable/c/95fbed8ae8c32c0977e6be1721c190d8fea23f2f https://git.kernel.org/stable/c/70767689ec6ee5f05fb0a2c17d7ec1927946e486 https://git.kernel.org/stable/c/ecd62f684386fa64f9c0cea92eea361f4e6444c2 https://git.kernel.org/stable/c/2fe5d62e122b040ce7fc4d31aa7fa96ae328cefc https://git.kernel.org/stable/c/88f97a4b5843ce21c1286e082c02a5fb4d8eb473 https://git.kernel.org/stable/c/0b6b8c2055784261de3fb641c5d0d6396 •
CVSS: -EPSS: %CPEs: 2EXPL: 0CVE-2024-50217 – btrfs: fix use-after-free of block device file in __btrfs_free_extra_devids()
https://notcve.org/view.php?id=CVE-2024-50217
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix use-after-free of block device file in __btrfs_free_extra_devids() Mounting btrfs from two images (which have the same one fsid and two different dev_uuids) in certain executing order may trigger an UAF for variable 'device->bdev_file' in __btrfs_free_extra_devids(). And following are the details: 1. Attach image_1 to loop0, attach image_2 to loop1, and scan btrfs devices by ioctl(BTRFS_IOC_SCAN_DEV): / btrfs_device_1 → loop0 fs_device \ btrfs_device_2 → loop1 2. mount /dev/loop0 /mnt btrfs_open_devices btrfs_device_1->bdev_file = btrfs_get_bdev_and_sb(loop0) btrfs_device_2->bdev_file = btrfs_get_bdev_and_sb(loop1) btrfs_fill_super open_ctree fail: btrfs_close_devices // -ENOMEM btrfs_close_bdev(btrfs_device_1) fput(btrfs_device_1->bdev_file) // btrfs_device_1->bdev_file is freed btrfs_close_bdev(btrfs_device_2) fput(btrfs_device_2->bdev_file) 3. mount /dev/loop1 /mnt btrfs_open_devices btrfs_get_bdev_and_sb(&bdev_file) // EIO, btrfs_device_1->bdev_file is not assigned, // which points to a freed memory area btrfs_device_2->bdev_file = btrfs_get_bdev_and_sb(loop1) btrfs_fill_super open_ctree btrfs_free_extra_devids if (btrfs_device_1->bdev_file) fput(btrfs_device_1->bdev_file) // UAF ! Fix it by setting 'device->bdev_file' as 'NULL' after closing the btrfs_device in btrfs_close_one_device(). • https://git.kernel.org/stable/c/142388194191a3edc9ba01cfcfd8b691e0971fb2 https://git.kernel.org/stable/c/47a83f8df39545f3f552bb6a1b6d9c30e37621dd https://git.kernel.org/stable/c/aec8e6bf839101784f3ef037dcdb9432c3f32343 •
CVSS: -EPSS: %CPEs: 4EXPL: 0CVE-2024-50215 – nvmet-auth: assign dh_key to NULL after kfree_sensitive
https://notcve.org/view.php?id=CVE-2024-50215
In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: assign dh_key to NULL after kfree_sensitive ctrl->dh_key might be used across multiple calls to nvmet_setup_dhgroup() for the same controller. So it's better to nullify it after release on error path in order to avoid double free later in nvmet_destroy_auth(). Found by Linux Verification Center (linuxtesting.org) with Svace. • https://git.kernel.org/stable/c/7a277c37d3522e9b2777d762bbbcecafae2b1f8d https://git.kernel.org/stable/c/c94e965f766321641ec38e4eece9ce8884543244 https://git.kernel.org/stable/c/c60af16e1d6cc2237d58336546d6adfc067b6b8f https://git.kernel.org/stable/c/e61bd51e44409495d75847e9230736593e4c8710 https://git.kernel.org/stable/c/d2f551b1f72b4c508ab9298419f6feadc3b5d791 •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-50211 – udf: refactor inode_bmap() to handle error
https://notcve.org/view.php?id=CVE-2024-50211
In the Linux kernel, the following vulnerability has been resolved: udf: refactor inode_bmap() to handle error Refactor inode_bmap() to handle error since udf_next_aext() can return error now. On situations like ftruncate, udf_extend_file() can now detect errors and bail out early without resorting to checking for particular offsets and assuming internal behavior of these functions. • https://git.kernel.org/stable/c/493447dd8336607fce426f7879e581095f6c606e https://git.kernel.org/stable/c/b22d9a5698abf04341f8fbc30141e0673863c3a6 https://git.kernel.org/stable/c/c226964ec786f3797ed389a16392ce4357697d24 •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2024-50210 – posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime()
https://notcve.org/view.php?id=CVE-2024-50210
In the Linux kernel, the following vulnerability has been resolved: posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime() If get_clock_desc() succeeds, it calls fget() for the clockid's fd, and get the clk->rwsem read lock, so the error path should release the lock to make the lock balance and fput the clockid's fd to make the refcount balance and release the fd related resource. However the below commit left the error path locked behind resulting in unbalanced locking. Check timespec64_valid_strict() before get_clock_desc() to fix it, because the "ts" is not changed after that. [pabeni@redhat.com: fixed commit message typo] • https://git.kernel.org/stable/c/673a1c5a2998acbd429d6286e6cad10f17f4f073 https://git.kernel.org/stable/c/c8789fbe2bbf75845e45302cba6ffa44e1884d01 https://git.kernel.org/stable/c/27abbde44b6e71ee3891de13e1a228aa7ce95bfe https://git.kernel.org/stable/c/a3f169e398215e71361774d13bf91a0101283ac2 https://git.kernel.org/stable/c/1ff7247101af723731ea42ed565d54fb8f341264 https://git.kernel.org/stable/c/d8794ac20a299b647ba9958f6d657051fc51a540 https://git.kernel.org/stable/c/c7fcfdba35abc9f39b83080c2bce398dad13a943 https://git.kernel.org/stable/c/e56e0ec1b79f5a6272c6e78b36e9d593a •