CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2021-46995 – can: mcp251xfd: mcp251xfd_probe(): fix an error pointer dereference in probe
https://notcve.org/view.php?id=CVE-2021-46995
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: can: mcp251xfd: mcp251xfd_probe(): fix an error pointer dereference in probe When we converted this code to use dev_err_probe() we accidentally removed a return. It means that if devm_clk_get() it will lead to an Oops when we call clk_get_rate() on the next line. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: mcp251xfd: mcp251xfd_probe(): corrige una desreferencia de puntero de error en la sonda Cuando convertimos e... • https://git.kernel.org/stable/c/cf8ee6de2543a0fa6d9471ddbb7216464a9681a1 •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-46994 – can: mcp251x: fix resume from sleep before interface was brought up
https://notcve.org/view.php?id=CVE-2021-46994
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: can: mcp251x: fix resume from sleep before interface was brought up Since 8ce8c0abcba3 the driver queues work via priv->restart_work when resuming after suspend, even when the interface was not previously enabled. This causes a null dereference error as the workqueue is only allocated and initialized in mcp251x_open(). To fix this we move the workqueue init to mcp251x_can_probe() as there is no reason to do it later and repeat it whenever m... • https://git.kernel.org/stable/c/8ce8c0abcba314e1fe954a1840f6568bf5aef2ef •
CVSS: 7.1EPSS: 0%CPEs: 5EXPL: 0CVE-2021-46993 – sched: Fix out-of-bound access in uclamp
https://notcve.org/view.php?id=CVE-2021-46993
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: sched: Fix out-of-bound access in uclamp Util-clamp places tasks in different buckets based on their clamp values for performance reasons. However, the size of buckets is currently computed using a rounding division, which can lead to an off-by-one error in some configurations. For instance, with 20 buckets, the bucket size will be 1024/20=51. A task with a clamp of 1024 will be mapped to bucket id 1024/51=20. Sadly, correct indexes are in ... • https://git.kernel.org/stable/c/69842cba9ace84849bb9b8edcdf2cefccd97901c •
CVSS: 5.3EPSS: 0%CPEs: 7EXPL: 0CVE-2021-46992 – netfilter: nftables: avoid overflows in nft_hash_buckets()
https://notcve.org/view.php?id=CVE-2021-46992
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: avoid overflows in nft_hash_buckets() Number of buckets being stored in 32bit variables, we have to ensure that no overflows occur in nft_hash_buckets() syzbot injected a size == 0x40000000 and reported: UBSAN: shift-out-of-bounds in ./include/linux/log2.h:57:13 shift exponent 64 is too large for 64-bit type 'long unsigned int' CPU: 1 PID: 29539 Comm: syz-executor.4 Not tainted 5.12.0-rc7-syzkaller #0 Hardware name: Goo... • https://git.kernel.org/stable/c/0ed6389c483dc77cdbdd48de0ca7ce41723dd667 •
CVSS: 7.8EPSS: 0%CPEs: 6EXPL: 0CVE-2021-46991 – i40e: Fix use-after-free in i40e_client_subtask()
https://notcve.org/view.php?id=CVE-2021-46991
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: i40e: Fix use-after-free in i40e_client_subtask() Currently the call to i40e_client_del_instance frees the object pf->cinst, however pf->cinst->lan_info is being accessed after the free. Fix this by adding the missing return. Addresses-Coverity: ("Read from pointer after free") En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: i40e: Se corrige use-after-free en i40e_client_subtask() Actualmente la llamada a i40e_client_del_... • https://git.kernel.org/stable/c/7b0b1a6d0ac983ce1928432285d0222d4fb7c38b •
CVSS: 5.5EPSS: 0%CPEs: 10EXPL: 0CVE-2021-46990 – powerpc/64s: Fix crashes when toggling entry flush barrier
https://notcve.org/view.php?id=CVE-2021-46990
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: powerpc/64s: Fix crashes when toggling entry flush barrier The entry flush mitigation can be enabled/disabled at runtime via a debugfs file (entry_flush), which causes the kernel to patch itself to enable/disable the relevant mitigations. However depending on which mitigation we're using, it may not be safe to do that patching while other CPUs are active. For example the following crash: sleeper[15639]: segfault (11) at c000000000004c20 nip... • https://git.kernel.org/stable/c/4a1e90af718d1489ffcecc8f52486c4f5dc0f7a6 •
CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0CVE-2021-46989 – hfsplus: prevent corruption in shrinking truncate
https://notcve.org/view.php?id=CVE-2021-46989
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: hfsplus: prevent corruption in shrinking truncate I believe there are some issues introduced by commit 31651c607151 ("hfsplus: avoid deadlock on file truncation") HFS+ has extent records which always contains 8 extents. In case the first extent record in catalog file gets full, new ones are allocated from extents overflow file. In case shrinking truncate happens to middle of an extent record which locates in extents overflow file, the logic... • https://git.kernel.org/stable/c/31651c607151f1034cfb57e5a78678bea54c362b •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2021-46988 – userfaultfd: release page in error path to avoid BUG_ON
https://notcve.org/view.php?id=CVE-2021-46988
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: userfaultfd: release page in error path to avoid BUG_ON Consider the following sequence of events: 1. Userspace issues a UFFD ioctl, which ends up calling into shmem_mfill_atomic_pte(). We successfully account the blocks, we shmem_alloc_page(), but then the copy_from_user() fails. We return -ENOENT. We don't release the page we allocated. 2. • https://git.kernel.org/stable/c/cb658a453b9327ce96ce5222c24d162b5b65b564 •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-46987 – btrfs: fix deadlock when cloning inline extents and using qgroups
https://notcve.org/view.php?id=CVE-2021-46987
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock when cloning inline extents and using qgroups There are a few exceptional cases where cloning an inline extent needs to copy the inline extent data into a page of the destination inode. When this happens, we end up starting a transaction while having a dirty page for the destination inode and while having the range locked in the destination's inode iotree too. Because when reserving metadata space for a transaction we ma... • https://git.kernel.org/stable/c/c53e9653605dbf708f5be02902de51831be4b009 •
CVSS: 6.2EPSS: 0%CPEs: 4EXPL: 0CVE-2021-46986 – usb: dwc3: gadget: Free gadget structure only after freeing endpoints
https://notcve.org/view.php?id=CVE-2021-46986
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: gadget: Free gadget structure only after freeing endpoints As part of commit e81a7018d93a ("usb: dwc3: allocate gadget structure dynamically") the dwc3_gadget_release() was added which will free the dwc->gadget structure upon the device's removal when usb_del_gadget_udc() is called in dwc3_gadget_exit(). However, simply freeing the gadget results a dangling pointer situation: the endpoints created in dwc3_gadget_init_endpoints() ... • https://git.kernel.org/stable/c/e81a7018d93a7de31a3f121c9a7eecd0a5ec58b0 •