CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-43856 – dma: fix call order in dmam_free_coherent
https://notcve.org/view.php?id=CVE-2024-43856
In the Linux kernel, the following vulnerability has been resolved: dma: fix call order in dmam_free_coherent dmam_free_coherent() frees a DMA allocation, which makes the freed vaddr available for reuse, then calls devres_destroy() to remove and free the data structure used to track the DMA allocation. Between the two calls, it is possible for a concurrent task to make an allocation with the same vaddr and add it to the devres list. If this happens, there will be two entries in the devres list with the same vaddr and devres_destroy() can free the wrong entry, triggering the WARN_ON() in dmam_match. Fix by destroying the devres entry before freeing the DMA allocation. kokonut //net/encryption http://sponge2/b9145fe6-0f72-4325-ac2f-a84d81075b03 • https://git.kernel.org/stable/c/9ac7849e35f705830f7b016ff272b0ff1f7ff759 https://git.kernel.org/stable/c/fe2d246080f035e0af5793cb79067ba125e4fb63 https://git.kernel.org/stable/c/2f7bbdc744f2e7051d1cb47c8e082162df1923c9 https://git.kernel.org/stable/c/257193083e8f43907e99ea633820fc2b3bcd24c7 https://git.kernel.org/stable/c/87b34c8c94e29fa01d744e5147697f592998d954 https://git.kernel.org/stable/c/f993a4baf6b622232e4c190d34c220179e5d61eb https://git.kernel.org/stable/c/1fe97f68fce1ba24bf823bfb0eb0956003473130 https://git.kernel.org/stable/c/22094f5f52e7bc16c5bf9613365049383 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-43854 – block: initialize integrity buffer to zero before writing it to media
https://notcve.org/view.php?id=CVE-2024-43854
In the Linux kernel, the following vulnerability has been resolved: block: initialize integrity buffer to zero before writing it to media Metadata added by bio_integrity_prep is using plain kmalloc, which leads to random kernel memory being written media. For PI metadata this is limited to the app tag that isn't used by kernel generated metadata, but for non-PI metadata the entire buffer leaks kernel memory. Fix this by adding the __GFP_ZERO flag to allocations for writes. • https://git.kernel.org/stable/c/7ba1ba12eeef0aa7113beb16410ef8b7c748e18b https://git.kernel.org/stable/c/9f4af4cf08f9a0329ade3d938f55d2220c40d0a6 https://git.kernel.org/stable/c/129f95948a96105c1fad8e612c9097763e88ac5f https://git.kernel.org/stable/c/3fd11fe4f20756b4c0847f755a64cd96f8c6a005 https://git.kernel.org/stable/c/cf6b45ea7a8df0f61bded1dc4a8561ac6ad143d2 https://git.kernel.org/stable/c/d418313bd8f55c079a7da12651951b489a638ac1 https://git.kernel.org/stable/c/23a19655fb56f241e592041156dfb1c6d04da644 https://git.kernel.org/stable/c/ebc0e91ba76dc6544fff9f5b66408b198 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-43853 – cgroup/cpuset: Prevent UAF in proc_cpuset_show()
https://notcve.org/view.php?id=CVE-2024-43853
In the Linux kernel, the following vulnerability has been resolved: cgroup/cpuset: Prevent UAF in proc_cpuset_show() An UAF can happen when /proc/cpuset is read as reported in [1]. This can be reproduced by the following methods: 1.add an mdelay(1000) before acquiring the cgroup_lock In the cgroup_path_ns function. 2.$cat /proc/<pid>/cpuset repeatly. 3.$mount -t cgroup -o cpuset cpuset /sys/fs/cgroup/cpuset/ $umount /sys/fs/cgroup/cpuset/ repeatly. The race that cause this bug can be shown as below: (umount) | (cat /proc/<pid>/cpuset) css_release | proc_cpuset_show css_release_work_fn | css = task_get_css(tsk, cpuset_cgrp_id); css_free_rwork_fn | cgroup_path_ns(css->cgroup, ...); cgroup_destroy_root | mutex_lock(&cgroup_mutex); rebind_subsystems | cgroup_free_root | | // cgrp was freed, UAF | cgroup_path_ns_locked(cgrp,..); When the cpuset is initialized, the root node top_cpuset.css.cgrp will point to &cgrp_dfl_root.cgrp. • https://git.kernel.org/stable/c/a79a908fd2b080977b45bf103184b81c9d11ad07 https://git.kernel.org/stable/c/27d6dbdc6485d68075a0ebf8544d6425c1ed84bb https://git.kernel.org/stable/c/10aeaa47e4aa2432f29b3e5376df96d7dac5537a https://git.kernel.org/stable/c/688325078a8b5badd6e07ae22b27cd04e9947aec https://git.kernel.org/stable/c/4e8d6ac8fc9f843e940ab7389db8136634e07989 https://git.kernel.org/stable/c/29a8d4e02fd4840028c38ceb1536cc8f82a257d4 https://git.kernel.org/stable/c/96226fbed566f3f686f53a489a29846f2d538080 https://git.kernel.org/stable/c/29ac1d238b3bf126af36037df80d7ecc4 •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-43846 – lib: objagg: Fix general protection fault
https://notcve.org/view.php?id=CVE-2024-43846
In the Linux kernel, the following vulnerability has been resolved: lib: objagg: Fix general protection fault The library supports aggregation of objects into other objects only if the parent object does not have a parent itself. That is, nesting is not supported. Aggregation happens in two cases: Without and with hints, where hints are a pre-computed recommendation on how to aggregate the provided objects. Nesting is not possible in the first case due to a check that prevents it, but in the second case there is no check because the assumption is that nesting cannot happen when creating objects based on hints. The violation of this assumption leads to various warnings and eventually to a general protection fault [1]. Before fixing the root cause, error out when nesting happens and warn. [1] general protection fault, probably for non-canonical address 0xdead000000000d90: 0000 [#1] PREEMPT SMP PTI CPU: 1 PID: 1083 Comm: kworker/1:9 Tainted: G W 6.9.0-rc6-custom-gd9b4f1cca7fb #7 Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019 Workqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work RIP: 0010:mlxsw_sp_acl_erp_bf_insert+0x25/0x80 [...] Call Trace: <TASK> mlxsw_sp_acl_atcam_entry_add+0x256/0x3c0 mlxsw_sp_acl_tcam_entry_create+0x5e/0xa0 mlxsw_sp_acl_tcam_vchunk_migrate_one+0x16b/0x270 mlxsw_sp_acl_tcam_vregion_rehash_work+0xbe/0x510 process_one_work+0x151/0x370 worker_thread+0x2cb/0x3e0 kthread+0xd0/0x100 ret_from_fork+0x34/0x50 ret_from_fork_asm+0x1a/0x30 </TASK> • https://git.kernel.org/stable/c/9069a3817d82b01b3a55da382c774e3575946130 https://git.kernel.org/stable/c/8161263362154cbebfbf4808097b956a6a8cb98a https://git.kernel.org/stable/c/22ae17a267f4812861f0c644186c3421ff97dbfc https://git.kernel.org/stable/c/565213e005557eb6cc4e42189d26eb300e02f170 https://git.kernel.org/stable/c/5adc61d29bbb461d7f7c2b48dceaa90ecd182eb7 https://git.kernel.org/stable/c/1936fa05a180834c3b52e0439a6bddc07814d3eb https://git.kernel.org/stable/c/499f742fed42e74f1321f4b12ca196a66a2b49fc https://git.kernel.org/stable/c/b4a3a89fffcdf09702b1f161b914e52ab •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-43841 – wifi: virt_wifi: avoid reporting connection success with wrong SSID
https://notcve.org/view.php?id=CVE-2024-43841
In the Linux kernel, the following vulnerability has been resolved: wifi: virt_wifi: avoid reporting connection success with wrong SSID When user issues a connection with a different SSID than the one virt_wifi has advertised, the __cfg80211_connect_result() will trigger the warning: WARN_ON(bss_not_found). The issue is because the connection code in virt_wifi does not check the SSID from user space (it only checks the BSSID), and virt_wifi will call cfg80211_connect_result() with WLAN_STATUS_SUCCESS even if the SSID is different from the one virt_wifi has advertised. Eventually cfg80211 won't be able to find the cfg80211_bss and generate the warning. Fixed it by checking the SSID (from user space) in the connection code. • https://git.kernel.org/stable/c/c7cdba31ed8b87526db978976392802d3f93110c https://git.kernel.org/stable/c/994fc2164a03200c3bf42fb45b3d49d9d6d33a4d https://git.kernel.org/stable/c/05c4488a0e446c6ccde9f22b573950665e1cd414 https://git.kernel.org/stable/c/93e898a264b4e0a475552ba9f99a016eb43ef942 https://git.kernel.org/stable/c/d3cc85a10abc8eae48988336cdd3689ab92581b3 https://git.kernel.org/stable/c/36e92b5edc8e0daa18e9325674313802ce3fbc29 https://git.kernel.org/stable/c/416d3c1538df005195721a200b0371d39636e05d https://git.kernel.org/stable/c/b5d14b0c6716fad7f0c94ac6e1d6f60a4 •