CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2024-26965 – clk: qcom: mmcc-msm8974: fix terminating of frequency table arrays
https://notcve.org/view.php?id=CVE-2024-26965
In the Linux kernel, the following vulnerability has been resolved: clk: qcom: mmcc-msm8974: fix terminating of frequency table arrays The frequency table arrays are supposed to be terminated with an empty element. Add such entry to the end of the arrays where it is missing in order to avoid possible out-of-bound access when the table is traversed by functions like qcom_find_freq() or qcom_find_freq_floor(). Only compile tested. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: clk: qcom: mmcc-msm8974: corrección de terminación de matrices de tablas de frecuencia Se supone que las matrices de tablas de frecuencia terminan con un elemento vacío. Agregue dicha entrada al final de las matrices donde falta para evitar un posible acceso fuera de los límites cuando la tabla es atravesada por funciones como qcom_find_freq() o qcom_find_freq_floor(). Solo compilar probado. • https://git.kernel.org/stable/c/d8b212014e69d6b6323773ce6898f224ef4ed0d6 https://git.kernel.org/stable/c/99740c4791dc8019b0d758c5389ca6d1c0604d95 https://git.kernel.org/stable/c/86bf75d9158f511db7530bc82a84b19a5134d089 https://git.kernel.org/stable/c/3ff4a0f6a8f0ad4b4ee9e908bdfc3cacb7be4060 https://git.kernel.org/stable/c/8f562f3b25177c2055b20fd8cf000496f6fa9194 https://git.kernel.org/stable/c/537040c257ab4cd0673fbae048f3940c8ea2e589 https://git.kernel.org/stable/c/7e9926fef71e514b4a8ea9d11d5a84d52b181362 https://git.kernel.org/stable/c/ae99e199037c580b7350bfa3596f447a5 •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2024-26962 – dm-raid456, md/raid456: fix a deadlock for dm-raid456 while io concurrent with reshape
https://notcve.org/view.php?id=CVE-2024-26962
In the Linux kernel, the following vulnerability has been resolved: dm-raid456, md/raid456: fix a deadlock for dm-raid456 while io concurrent with reshape For raid456, if reshape is still in progress, then IO across reshape position will wait for reshape to make progress. However, for dm-raid, in following cases reshape will never make progress hence IO will hang: 1) the array is read-only; 2) MD_RECOVERY_WAIT is set; 3) MD_RECOVERY_FROZEN is set; After commit c467e97f079f ("md/raid6: use valid sector values to determine if an I/O should wait on the reshape") fix the problem that IO across reshape position doesn't wait for reshape, the dm-raid test shell/lvconvert-raid-reshape.sh start to hang: [root@fedora ~]# cat /proc/979/stack [<0>] wait_woken+0x7d/0x90 [<0>] raid5_make_request+0x929/0x1d70 [raid456] [<0>] md_handle_request+0xc2/0x3b0 [md_mod] [<0>] raid_map+0x2c/0x50 [dm_raid] [<0>] __map_bio+0x251/0x380 [dm_mod] [<0>] dm_submit_bio+0x1f0/0x760 [dm_mod] [<0>] __submit_bio+0xc2/0x1c0 [<0>] submit_bio_noacct_nocheck+0x17f/0x450 [<0>] submit_bio_noacct+0x2bc/0x780 [<0>] submit_bio+0x70/0xc0 [<0>] mpage_readahead+0x169/0x1f0 [<0>] blkdev_readahead+0x18/0x30 [<0>] read_pages+0x7c/0x3b0 [<0>] page_cache_ra_unbounded+0x1ab/0x280 [<0>] force_page_cache_ra+0x9e/0x130 [<0>] page_cache_sync_ra+0x3b/0x110 [<0>] filemap_get_pages+0x143/0xa30 [<0>] filemap_read+0xdc/0x4b0 [<0>] blkdev_read_iter+0x75/0x200 [<0>] vfs_read+0x272/0x460 [<0>] ksys_read+0x7a/0x170 [<0>] __x64_sys_read+0x1c/0x30 [<0>] do_syscall_64+0xc6/0x230 [<0>] entry_SYSCALL_64_after_hwframe+0x6c/0x74 This is because reshape can't make progress. For md/raid, the problem doesn't exist because register new sync_thread doesn't rely on the IO to be done any more: 1) If array is read-only, it can switch to read-write by ioctl/sysfs; 2) md/raid never set MD_RECOVERY_WAIT; 3) If MD_RECOVERY_FROZEN is set, mddev_suspend() doesn't hold 'reconfig_mutex', hence it can be cleared and reshape can continue by sysfs api 'sync_action'. However, I'm not sure yet how to avoid the problem in dm-raid yet. This patch on the one hand make sure raid_message() can't change sync_thread() through raid_message() after presuspend(), on the other hand detect the above 3 cases before wait for IO do be done in dm_suspend(), and let dm-raid requeue those IO. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: dm-raid456, md/raid456: soluciona un punto muerto para dm-raid456 mientras io concurre con reshape. Para raid456, si el reshape todavía está en progreso, entonces IO en la posición de reshape esperará remodelar para progresar. • https://git.kernel.org/stable/c/5943a34bf6bab5801e08a55f63e1b8d5bc90dae1 https://git.kernel.org/stable/c/a8d249d770cb357d16a2097b548d2e4c1c137304 https://git.kernel.org/stable/c/41425f96d7aa59bc865f60f5dda3d7697b555677 https://access.redhat.com/security/cve/CVE-2024-26962 https://bugzilla.redhat.com/show_bug.cgi?id=2278174 •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2024-26961 – mac802154: fix llsec key resources release in mac802154_llsec_key_del
https://notcve.org/view.php?id=CVE-2024-26961
In the Linux kernel, the following vulnerability has been resolved: mac802154: fix llsec key resources release in mac802154_llsec_key_del mac802154_llsec_key_del() can free resources of a key directly without following the RCU rules for waiting before the end of a grace period. This may lead to use-after-free in case llsec_lookup_key() is traversing the list of keys in parallel with a key deletion: refcount_t: addition on 0; use-after-free. WARNING: CPU: 4 PID: 16000 at lib/refcount.c:25 refcount_warn_saturate+0x162/0x2a0 Modules linked in: CPU: 4 PID: 16000 Comm: wpan-ping Not tainted 6.7.0 #19 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:refcount_warn_saturate+0x162/0x2a0 Call Trace: <TASK> llsec_lookup_key.isra.0+0x890/0x9e0 mac802154_llsec_encrypt+0x30c/0x9c0 ieee802154_subif_start_xmit+0x24/0x1e0 dev_hard_start_xmit+0x13e/0x690 sch_direct_xmit+0x2ae/0xbc0 __dev_queue_xmit+0x11dd/0x3c20 dgram_sendmsg+0x90b/0xd60 __sys_sendto+0x466/0x4c0 __x64_sys_sendto+0xe0/0x1c0 do_syscall_64+0x45/0xf0 entry_SYSCALL_64_after_hwframe+0x6e/0x76 Also, ieee802154_llsec_key_entry structures are not freed by mac802154_llsec_key_del(): unreferenced object 0xffff8880613b6980 (size 64): comm "iwpan", pid 2176, jiffies 4294761134 (age 60.475s) hex dump (first 32 bytes): 78 0d 8f 18 80 88 ff ff 22 01 00 00 00 00 ad de x......."....... 00 00 00 00 00 00 00 00 03 00 cd ab 00 00 00 00 ................ backtrace: [<ffffffff81dcfa62>] __kmem_cache_alloc_node+0x1e2/0x2d0 [<ffffffff81c43865>] kmalloc_trace+0x25/0xc0 [<ffffffff88968b09>] mac802154_llsec_key_add+0xac9/0xcf0 [<ffffffff8896e41a>] ieee802154_add_llsec_key+0x5a/0x80 [<ffffffff8892adc6>] nl802154_add_llsec_key+0x426/0x5b0 [<ffffffff86ff293e>] genl_family_rcv_msg_doit+0x1fe/0x2f0 [<ffffffff86ff46d1>] genl_rcv_msg+0x531/0x7d0 [<ffffffff86fee7a9>] netlink_rcv_skb+0x169/0x440 [<ffffffff86ff1d88>] genl_rcv+0x28/0x40 [<ffffffff86fec15c>] netlink_unicast+0x53c/0x820 [<ffffffff86fecd8b>] netlink_sendmsg+0x93b/0xe60 [<ffffffff86b91b35>] ____sys_sendmsg+0xac5/0xca0 [<ffffffff86b9c3dd>] ___sys_sendmsg+0x11d/0x1c0 [<ffffffff86b9c65a>] __sys_sendmsg+0xfa/0x1d0 [<ffffffff88eadbf5>] do_syscall_64+0x45/0xf0 [<ffffffff890000ea>] entry_SYSCALL_64_after_hwframe+0x6e/0x76 Handle the proper resource release in the RCU callback function mac802154_llsec_key_del_rcu(). Note that if llsec_lookup_key() finds a key, it gets a refcount via llsec_key_get() and locally copies key id from key_entry (which is a list element). So it's safe to call llsec_key_put() and free the list entry after the RCU grace period elapses. Found by Linux Verification Center (linuxtesting.org). En el kernel de Linux, se resolvió la siguiente vulnerabilidad: mac802154: corrige la liberación de recursos de clave llsec en mac802154_llsec_key_del mac802154_llsec_key_del() puede liberar recursos de una clave directamente sin seguir las reglas de RCU para esperar antes del final de un período de gracia. Esto puede llevar a un use-after-free en caso de que llsec_lookup_key() esté recorriendo la lista de claves en paralelo con una eliminación de clave: refcount_t: suma en 0; use-after-free. • https://git.kernel.org/stable/c/5d637d5aabd85132bd85779677d8acb708e0ed90 https://git.kernel.org/stable/c/068ab2759bc0b4daf0b964de61b2731449c86531 https://git.kernel.org/stable/c/d3d858650933d44ac12c1f31337e7110c2071821 https://git.kernel.org/stable/c/dcd51ab42b7a0431575689c5f74b8b6efd45fc2f https://git.kernel.org/stable/c/20d3e1c8a1847497269f04d874b2a5818ec29e2d https://git.kernel.org/stable/c/640297c3e897bd7e1481466a6a5cb9560f1edb88 https://git.kernel.org/stable/c/49c8951680d7b76fceaee89dcfbab1363fb24fd1 https://git.kernel.org/stable/c/e8a1e58345cf40b7b272e08ac7b32328b • CWE-459: Incomplete Cleanup •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2024-26960 – mm: swap: fix race between free_swap_and_cache() and swapoff()
https://notcve.org/view.php?id=CVE-2024-26960
In the Linux kernel, the following vulnerability has been resolved: mm: swap: fix race between free_swap_and_cache() and swapoff() There was previously a theoretical window where swapoff() could run and teardown a swap_info_struct while a call to free_swap_and_cache() was running in another thread. This could cause, amongst other bad possibilities, swap_page_trans_huge_swapped() (called by free_swap_and_cache()) to access the freed memory for swap_map. This is a theoretical problem and I haven't been able to provoke it from a test case. But there has been agreement based on code review that this is possible (see link below). Fix it by using get_swap_device()/put_swap_device(), which will stall swapoff(). There was an extra check in _swap_info_get() to confirm that the swap entry was not free. This isn't present in get_swap_device() because it doesn't make sense in general due to the race between getting the reference and swapoff. • https://git.kernel.org/stable/c/7c00bafee87c7bac7ed9eced7c161f8e5332cb4e https://git.kernel.org/stable/c/d85c11c97ecf92d47a4b29e3faca714dc1f18d0d https://git.kernel.org/stable/c/2da5568ee222ce0541bfe446a07998f92ed1643e https://git.kernel.org/stable/c/1ede7f1d7eed1738d1b9333fd1e152ccb450b86a https://git.kernel.org/stable/c/0f98f6d2fb5fad00f8299b84b85b6bc1b6d7d19a https://git.kernel.org/stable/c/3ce4c4c653e4e478ecb15d3c88e690f12cbf6b39 https://git.kernel.org/stable/c/363d17e7f7907c8e27a9e86968af0eaa2301787b https://git.kernel.org/stable/c/82b1c07a0af603e3c47b906c8e991dc96 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2024-26958 – nfs: fix UAF in direct writes
https://notcve.org/view.php?id=CVE-2024-26958
In the Linux kernel, the following vulnerability has been resolved: nfs: fix UAF in direct writes In production we have been hitting the following warning consistently ------------[ cut here ]------------ refcount_t: underflow; use-after-free. WARNING: CPU: 17 PID: 1800359 at lib/refcount.c:28 refcount_warn_saturate+0x9c/0xe0 Workqueue: nfsiod nfs_direct_write_schedule_work [nfs] RIP: 0010:refcount_warn_saturate+0x9c/0xe0 PKRU: 55555554 Call Trace: <TASK> ? __warn+0x9f/0x130 ? refcount_warn_saturate+0x9c/0xe0 ? report_bug+0xcc/0x150 ? handle_bug+0x3d/0x70 ? • https://git.kernel.org/stable/c/4595d90b5d2ea5fa4d318d13f59055aa4bf3e7f5 https://git.kernel.org/stable/c/80d24b308b7ee7037fc90d8ac99f6f78df0a256f https://git.kernel.org/stable/c/3abc2d160ed8213948b147295d77d44a22c88fa3 https://git.kernel.org/stable/c/e25447c35f8745337ea8bc0c9697fcac14df8605 https://git.kernel.org/stable/c/1daf52b5ffb24870fbeda20b4967526d8f9e12ab https://git.kernel.org/stable/c/cf54f66e1dd78990ec6b32177bca7e6ea2144a95 https://git.kernel.org/stable/c/17f46b803d4f23c66cacce81db35fef3adb8f2af https://lists.debian.org/debian-lts-announce/2024/06/ •