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: 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-2024-50209 – RDMA/bnxt_re: Add a check for memory allocation
https://notcve.org/view.php?id=CVE-2024-50209
In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Add a check for memory allocation __alloc_pbl() can return error when memory allocation fails. Driver is not checking the status on one of the instances. • https://git.kernel.org/stable/c/0c4dcd602817502bb3dced7a834a13ef717d65a4 https://git.kernel.org/stable/c/dbe51dd516e6d4e655f31c8a1cbc050dde7ba97b https://git.kernel.org/stable/c/322a19baaaa25a1fe8ce9fceaed9409ad847844c https://git.kernel.org/stable/c/76dd679c3b148d23f72dcf6c3cde3d5f746b2c07 https://git.kernel.org/stable/c/c71957271f2e8133a6aa82001c2fa671d5008129 https://git.kernel.org/stable/c/ba9045887b435a4c5551245ae034b8791b4e4aaa https://git.kernel.org/stable/c/c5c1ae73b7741fa3b58e6e001b407825bb971225 •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2024-50208 – RDMA/bnxt_re: Fix a bug while setting up Level-2 PBL pages
https://notcve.org/view.php?id=CVE-2024-50208
In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Fix a bug while setting up Level-2 PBL pages Avoid memory corruption while setting up Level-2 PBL pages for the non MR resources when num_pages > 256K. There will be a single PDE page address (contiguous pages in the case of > PAGE_SIZE), but, current logic assumes multiple pages, leading to invalid memory access after 256K PBL entries in the PDE. • https://git.kernel.org/stable/c/0c4dcd602817502bb3dced7a834a13ef717d65a4 https://git.kernel.org/stable/c/df6fed0a2a1a5e57f033bca40dc316b18e0d0ce6 https://git.kernel.org/stable/c/de5857fa7bcc9a496a914c7e21390be873109f26 https://git.kernel.org/stable/c/ea701c1849e7250ea41a4f7493e0a5f136c1d47e https://git.kernel.org/stable/c/87cb3b0054e53e0155b630bdf8fb714ded62565f https://git.kernel.org/stable/c/daac56dd98e1ba814c878ac0acd482a37f2ab94b https://git.kernel.org/stable/c/7988bdbbb85ac85a847baf09879edcd0f70521dc •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-50205 – ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size()
https://notcve.org/view.php?id=CVE-2024-50205
In the Linux kernel, the following vulnerability has been resolved: ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size() The step variable is initialized to zero. It is changed in the loop, but if it's not changed it will remain zero. Add a variable check before the division. The observed behavior was introduced by commit 826b5de90c0b ("ALSA: firewire-lib: fix insufficient PCM rule for period/buffer size"), and it is difficult to show that any of the interval parameters will satisfy the snd_interval_test() condition with data from the amdtp_rate_table[] table. Found by Linux Verification Center (linuxtesting.org) with SVACE. • https://git.kernel.org/stable/c/826b5de90c0bca4e9de6231da9e1730480621588 https://git.kernel.org/stable/c/d575414361630b8b0523912532fcd7c79e43468c https://git.kernel.org/stable/c/5e431f85c87bbffd93a9830d5a576586f9855291 https://git.kernel.org/stable/c/7d4eb9e22131ec154e638cbd56629195c9bcbe9a https://git.kernel.org/stable/c/d2826873db70a6719cdd9212a6739f3e6234cfc4 https://git.kernel.org/stable/c/4bdc21506f12b2d432b1f2667e5ff4c75eee58e3 https://git.kernel.org/stable/c/3452d39c4704aa12504e4190298c721fb01083c3 https://git.kernel.org/stable/c/72cafe63b35d06b5cfbaf807e90ae6579 •