CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2021-47498 – dm rq: don't queue request to blk-mq during DM suspend
https://notcve.org/view.php?id=CVE-2021-47498
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: dm rq: don't queue request to blk-mq during DM suspend DM uses blk-mq's quiesce/unquiesce to stop/start device mapper queue. But blk-mq's unquiesce may come from outside events, such as elevator switch, updating nr_requests or others, and request may come during suspend, so simply ask for blk-mq to requeue it. Fixes one kernel panic issue when running updating nr_requests and dm-mpath suspend/resume stress test. En el kernel de Linux, se ha... • https://git.kernel.org/stable/c/8ca9745efe3528feb06ca4e117188038eea2d351 • CWE-399: Resource Management Errors •
CVSS: 6.0EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47497 – nvmem: Fix shift-out-of-bound (UBSAN) with byte size cells
https://notcve.org/view.php?id=CVE-2021-47497
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: nvmem: Fix shift-out-of-bound (UBSAN) with byte size cells If a cell has 'nbits' equal to a multiple of BITS_PER_BYTE the logic *p &= GENMASK((cell->nbits%BITS_PER_BYTE) - 1, 0); will become undefined behavior because nbits modulo BITS_PER_BYTE is 0, and we subtract one from that making a large number that is then shifted more than the number of bits that fit into an unsigned long. UBSAN reports this problem: UBSAN: shift-out-of-bounds in d... • https://git.kernel.org/stable/c/69aba7948cbe53f2f1827e84e9dd0ae470a5072e • CWE-125: Out-of-bounds Read •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47495 – usbnet: sanity check for maxpacket
https://notcve.org/view.php?id=CVE-2021-47495
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: usbnet: sanity check for maxpacket maxpacket of 0 makes no sense and oopses as we need to divide by it. Give up. V2: fixed typo in log and stylistic issues En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usbnet: verificación de cordura para maxpacket maxpacket de 0 no tiene sentido y falla ya que necesitamos dividirlo por él. Abandonar. V2: error tipográfico corregido en el registro y problemas de estilo In the Linux kern... • https://git.kernel.org/stable/c/b9eba0a4a527e04d712f0e0401e5391ef124b33e • CWE-369: Divide By Zero •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-47493 – ocfs2: fix race between searching chunks and release journal_head from buffer_head
https://notcve.org/view.php?id=CVE-2021-47493
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix race between searching chunks and release journal_head from buffer_head Encountered a race between ocfs2_test_bg_bit_allocatable() and jbd2_journal_put_journal_head() resulting in the below vmcore. PID: 106879 TASK: ffff880244ba9c00 CPU: 2 COMMAND: "loop3" Call trace: panic oops_end no_context __bad_area_nosemaphore bad_area_nosemaphore __do_page_fault do_page_fault page_fault [exception RIP: ocfs2_block_group_find_clear_bits+316... • https://git.kernel.org/stable/c/5043fbd294f5909a080ade0f04b70a4da9e122b7 •
CVSS: 4.7EPSS: 0%CPEs: 6EXPL: 0CVE-2021-47490 – drm/ttm: fix memleak in ttm_transfered_destroy
https://notcve.org/view.php?id=CVE-2021-47490
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: drm/ttm: fix memleak in ttm_transfered_destroy We need to cleanup the fences for ghost objects as well. Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214029 Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214447 En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/ttm: corrige memleak en ttm_transfered_destroy También necesitamos limpiar las barreras para detectar objetos fantasma. Error: https://bugzilla.kernel.org/sh... • https://git.kernel.org/stable/c/bd99782f3ca491879e8524c89b1c0f40071903bd •
CVSS: 6.7EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47485 – IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields
https://notcve.org/view.php?id=CVE-2021-47485
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields Overflowing either addrlimit or bytes_togo can allow userspace to trigger a buffer overflow of kernel memory. Check for overflows in all the places doing math on user controlled buffers. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: IB/qib: Protege contra el desbordamiento del búfer en los campos de struct qib_user_sdma_pkt. El desbordamiento de add... • https://git.kernel.org/stable/c/f931551bafe1f10ded7f5282e2aa162c267a2e5d •
CVSS: 7.0EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47483 – regmap: Fix possible double-free in regcache_rbtree_exit()
https://notcve.org/view.php?id=CVE-2021-47483
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: regmap: Fix possible double-free in regcache_rbtree_exit() In regcache_rbtree_insert_to_block(), when 'present' realloc failed, the 'blk' which is supposed to assign to 'rbnode->block' will be freed, so 'rbnode->block' points a freed memory, in the error handling path of regcache_rbtree_init(), 'rbnode->block' will be freed again in regcache_rbtree_exit(), KASAN will report double-free as follows: BUG: KASAN: double-free or invalid-free in ... • https://git.kernel.org/stable/c/3f4ff561bc88b074d5e868dde4012d89cbb06c87 •
CVSS: 5.3EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47482 – net: batman-adv: fix error handling
https://notcve.org/view.php?id=CVE-2021-47482
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: net: batman-adv: fix error handling Syzbot reported ODEBUG warning in batadv_nc_mesh_free(). The problem was in wrong error handling in batadv_mesh_init(). Before this patch batadv_mesh_init() was calling batadv_mesh_free() in case of any batadv_*_init() calls failure. This approach may work well, when there is some kind of indicator, which can tell which parts of batadv are initialized; but there isn't any. All written above lead to cleani... • https://git.kernel.org/stable/c/c6c8fea29769d998d94fcec9b9f14d4b52b349d3 • CWE-544: Missing Standardized Error Handling Mechanism •
CVSS: 4.7EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47480 – scsi: core: Put LLD module refcnt after SCSI device is released
https://notcve.org/view.php?id=CVE-2021-47480
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: scsi: core: Put LLD module refcnt after SCSI device is released SCSI host release is triggered when SCSI device is freed. We have to make sure that the low-level device driver module won't be unloaded before SCSI host instance is released because shost->hostt is required in the release handler. Make sure to put LLD module refcnt after SCSI device is released. Fixes a kernel panic of 'BUG: unable to handle page fault for address' reported by... • https://git.kernel.org/stable/c/1105573d964f7b78734348466b01f5f6ba8a1813 •
CVSS: 6.4EPSS: 0%CPEs: 5EXPL: 0CVE-2021-47479 – staging: rtl8712: fix use-after-free in rtl8712_dl_fw
https://notcve.org/view.php?id=CVE-2021-47479
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: staging: rtl8712: fix use-after-free in rtl8712_dl_fw Syzbot reported use-after-free in rtl8712_dl_fw(). The problem was in race condition between r871xu_dev_remove() ->ndo_open() callback. It's easy to see from crash log, that driver accesses released firmware in ->ndo_open() callback. It may happen, since driver was releasing firmware _before_ unregistering netdev. Fix it by moving unregister_netdev() before cleaning up resources. • https://git.kernel.org/stable/c/8c213fa59199f9673d66970d6940fa093186642f •