CVSS: -EPSS: 0%CPEs: 10EXPL: 0CVE-2024-56548 – hfsplus: don't query the device logical block size multiple times
https://notcve.org/view.php?id=CVE-2024-56548
In the Linux kernel, the following vulnerability has been resolved: hfsplus: don't query the device logical block size multiple times Devices block sizes may change. One of these cases is a loop device by using ioctl LOOP_SET_BLOCK_SIZE. While this may cause other issues like IO being rejected, in the case of hfsplus, it will allocate a block by using that size and potentially write out-of-bounds when hfsplus_read_wrapper calls hfsplus_submit_bio and the latter function reads a different io_size. Using a new min_io_size initally set to sb_min_blocksize works for the purposes of the original fix, since it will be set to the max between HFSPLUS_SECTOR_SIZE and the first seen logical block size. We still use the max between HFSPLUS_SECTOR_SIZE and min_io_size in case the latter is not initialized. Tested by mounting an hfsplus filesystem with loop block sizes 512, 1024 and 4096. The produced KASAN report before the fix looks like this: [ 419.944641] ================================================================== [ 419.945655] BUG: KASAN: slab-use-after-free in hfsplus_read_wrapper+0x659/0xa0a [ 419.946703] Read of size 2 at addr ffff88800721fc00 by task repro/10678 [ 419.947612] [ 419.947846] CPU: 0 UID: 0 PID: 10678 Comm: repro Not tainted 6.12.0-rc5-00008-gdf56e0f2f3ca #84 [ 419.949007] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 [ 419.950035] Call Trace: [ 419.950384] <TASK> [ 419.950676] dump_stack_lvl+0x57/0x78 [ 419.951212] ? hfsplus_read_wrapper+0x659/0xa0a [ 419.951830] print_report+0x14c/0x49e [ 419.952361] ? __virt_addr_valid+0x267/0x278 [ 419.952979] ? • https://git.kernel.org/stable/c/6596528e391ad978a6a120142cba97a1d7324cb6 https://git.kernel.org/stable/c/c53c89aba3ebdfc3e9acdb18bb5ee9d2f8a328d0 https://git.kernel.org/stable/c/baccb5e12577b7a9eff54ffba301fdaa0f3ee5a8 https://git.kernel.org/stable/c/f57725bcc5816425e25218fdf5fb6923bc578cdf https://git.kernel.org/stable/c/e8a2b1c1c2ea85e9a5a2d0c5a5a7e7c639feb866 https://git.kernel.org/stable/c/06cbfbb13ac88f4154c2eb4bc4176f9d10139847 https://git.kernel.org/stable/c/3d7bda75e1a6239db053c73acde17ca146317824 https://git.kernel.org/stable/c/21900e8478126ff6afe3b66679f676e74 •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-56544 – udmabuf: change folios array from kmalloc to kvmalloc
https://notcve.org/view.php?id=CVE-2024-56544
In the Linux kernel, the following vulnerability has been resolved: udmabuf: change folios array from kmalloc to kvmalloc When PAGE_SIZE 4096, MAX_PAGE_ORDER 10, 64bit machine, page_alloc only support 4MB. If above this, trigger this warn and return NULL. udmabuf can change size limit, if change it to 3072(3GB), and then alloc 3GB udmabuf, will fail create. [ 4080.876581] ------------[ cut here ]------------ [ 4080.876843] WARNING: CPU: 3 PID: 2015 at mm/page_alloc.c:4556 __alloc_pages+0x2c8/0x350 [ 4080.878839] RIP: 0010:__alloc_pages+0x2c8/0x350 [ 4080.879470] Call Trace: [ 4080.879473] <TASK> [ 4080.879473] ? __alloc_pages+0x2c8/0x350 [ 4080.879475] ? __warn.cold+0x8e/0xe8 [ 4080.880647] ? __alloc_pages+0x2c8/0x350 [ 4080.880909] ? report_bug+0xff/0x140 [ 4080.881175] ? • https://git.kernel.org/stable/c/2acc6192aa8570661ed37868c02c03002b1dc290 https://git.kernel.org/stable/c/85bb72397cb63649fe493c96e27e1d0e4ed2ff63 https://git.kernel.org/stable/c/1c0844c6184e658064e14c4335885785ad3bf84b •
CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2024-56539 – wifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan()
https://notcve.org/view.php?id=CVE-2024-56539
In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan() Replace one-element array with a flexible-array member in `struct mwifiex_ie_types_wildcard_ssid_params` to fix the following warning on a MT8173 Chromebook (mt8173-elm-hana): [ 356.775250] ------------[ cut here ]------------ [ 356.784543] memcpy: detected field-spanning write (size 6) of single field "wildcard_ssid_tlv->ssid" at drivers/net/wireless/marvell/mwifiex/scan.c:904 (size 1) [ 356.813403] WARNING: CPU: 3 PID: 742 at drivers/net/wireless/marvell/mwifiex/scan.c:904 mwifiex_scan_networks+0x4fc/0xf28 [mwifiex] The "(size 6)" above is exactly the length of the SSID of the network this device was connected to. The source of the warning looks like: ssid_len = user_scan_in->ssid_list[i].ssid_len; [...] memcpy(wildcard_ssid_tlv->ssid, user_scan_in->ssid_list[i].ssid, ssid_len); There is a #define WILDCARD_SSID_TLV_MAX_SIZE that uses sizeof() on this struct, but it already didn't account for the size of the one-element array, so it doesn't need to be changed. • https://git.kernel.org/stable/c/5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e https://git.kernel.org/stable/c/a09760c513ae0f98c7082a1deace7fb6284ee866 https://git.kernel.org/stable/c/1de0ca1d7320a645ba2ee5954f64be08935b002a https://git.kernel.org/stable/c/5fa329c44e1e635da2541eab28b6cdb8464fc8d1 https://git.kernel.org/stable/c/581261b2d6fdb4237b24fa13f5a5f87bf2861f2c https://git.kernel.org/stable/c/b466746cfb6be43f9a1457bbee52ade397fb23ea https://git.kernel.org/stable/c/c4698ef8c42e02782604bf4f8a489dbf6b0c1365 https://git.kernel.org/stable/c/e2de22e4b6213371d9e76f74a10ce8175 •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-56533 – ALSA: usx2y: Use snd_card_free_when_closed() at disconnection
https://notcve.org/view.php?id=CVE-2024-56533
In the Linux kernel, the following vulnerability has been resolved: ALSA: usx2y: Use snd_card_free_when_closed() at disconnection The USB disconnect callback is supposed to be short and not too-long waiting. OTOH, the current code uses snd_card_free() at disconnection, but this waits for the close of all used fds, hence it can take long. It eventually blocks the upper layer USB ioctls, which may trigger a soft lockup. An easy workaround is to replace snd_card_free() with snd_card_free_when_closed(). This variant returns immediately while the release of resources is done asynchronously by the card device release at the last close. • https://git.kernel.org/stable/c/230cd5e24853ed4dd960461989b8ed0986d37a99 https://git.kernel.org/stable/c/24fe9f7ca83ec9acf765339054951f5cd9ae5c5d https://git.kernel.org/stable/c/befcca1777525e37c659b4129d8ac7463b07ef67 https://git.kernel.org/stable/c/7bd8838c0ea886679a32834fdcacab296d072fbe https://git.kernel.org/stable/c/e07605d855c4104d981653146a330ea48f6266ed https://git.kernel.org/stable/c/ffbfc6c4330fc233698529656798bee44fea96f5 https://git.kernel.org/stable/c/e869642a77a9b3b98b0ab2c8fec7af4385140909 https://git.kernel.org/stable/c/dafb28f02be407e07a6f679e922a62659 •
CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2024-56532 – ALSA: us122l: Use snd_card_free_when_closed() at disconnection
https://notcve.org/view.php?id=CVE-2024-56532
In the Linux kernel, the following vulnerability has been resolved: ALSA: us122l: Use snd_card_free_when_closed() at disconnection The USB disconnect callback is supposed to be short and not too-long waiting. OTOH, the current code uses snd_card_free() at disconnection, but this waits for the close of all used fds, hence it can take long. It eventually blocks the upper layer USB ioctls, which may trigger a soft lockup. An easy workaround is to replace snd_card_free() with snd_card_free_when_closed(). This variant returns immediately while the release of resources is done asynchronously by the card device release at the last close. The loop of us122l->mmap_count check is dropped as well. The check is useless for the asynchronous operation with *_when_closed(). • https://git.kernel.org/stable/c/030a07e441296c372f946cd4065b5d831d8dc40c https://git.kernel.org/stable/c/020cbc4d7414f0962004213e2b7bc5cc607e9ec7 https://git.kernel.org/stable/c/75f418b249d84021865eaa59515d3ed9b75ce4d6 https://git.kernel.org/stable/c/bf0aa35a7cb8602cccf2387712114e836f65c154 https://git.kernel.org/stable/c/9a48bd2184b142c92a4e17eac074c61fcf975bc9 https://git.kernel.org/stable/c/bc778ad3e495333eebda36fe91d5b2c93109cc16 https://git.kernel.org/stable/c/2938dd2648522336133c151dd67bb9bf01cbd390 https://git.kernel.org/stable/c/9b27924dc8d7f8a8c35e521287d4ccb9a •