CVSS: 8.4EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47456 – can: peak_pci: peak_pci_remove(): fix UAF
https://notcve.org/view.php?id=CVE-2021-47456
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: can: peak_pci: peak_pci_remove(): fix UAF When remove the module peek_pci, referencing 'chan' again after releasing 'dev' will cause UAF. Fix this by releasing 'dev' later. The following log reveals it: [ 35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci] [ 35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537 [ 35.965513 ] Call Trace: [ 35.965718 ] dump_stack_lvl+0xa8/0xd1 [ 35.966028 ] pri... • https://git.kernel.org/stable/c/e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd • CWE-416: Use After Free CWE-467: Use of sizeof() on a Pointer Type •
CVSS: 5.1EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47455 – ptp: Fix possible memory leak in ptp_clock_register()
https://notcve.org/view.php?id=CVE-2021-47455
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: ptp: Fix possible memory leak in ptp_clock_register() I got memory leak as follows when doing fault injection test: unreferenced object 0xffff88800906c618 (size 8): comm "i2c-idt82p33931", pid 4421, jiffies 4294948083 (age 13.188s) hex dump (first 8 bytes): 70 74 70 30 00 00 00 00 ptp0.... backtrace: [<00000000312ed458>] __kmalloc_track_caller+0x19f/0x3a0 [<0000000079f6e2ff>] kvasprintf+0xb5/0x150 [<0000000026aae54f>] kvasprintf_const+0x60/... • https://git.kernel.org/stable/c/a33121e5487b424339636b25c35d3a180eaa5f5e •
CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0CVE-2021-47454 – powerpc/smp: do not decrement idle task preempt count in CPU offline
https://notcve.org/view.php?id=CVE-2021-47454
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: powerpc/smp: do not decrement idle task preempt count in CPU offline With PREEMPT_COUNT=y, when a CPU is offlined and then onlined again, we get: BUG: scheduling while atomic: swapper/1/0/0x00000000 no locks held by swapper/1/0. CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.15.0-rc2+ #100 Call Trace: dump_stack_lvl+0xac/0x108 __schedule_bug+0xac/0xe0 __schedule+0xcf8/0x10d0 schedule_idle+0x3c/0x70 do_idle+0x2d8/0x4a0 cpu_startup_entry+0x38/0x... • https://git.kernel.org/stable/c/bdf4d33e8342b90386156204e1da0cdfdb4bf146 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2021-47453 – ice: Avoid crash from unnecessary IDA free
https://notcve.org/view.php?id=CVE-2021-47453
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: ice: Avoid crash from unnecessary IDA free In the remove path, there is an attempt to free the aux_idx IDA whether it was allocated or not. This can potentially cause a crash when unloading the driver on systems that do not initialize support for RDMA. But, this free cannot be gated by the status bit for RDMA, since it is allocated if the driver detects support for RDMA at probe time, but the driver can enter into a state where RDMA is not ... • https://git.kernel.org/stable/c/d25a0fc41c1f927bb914e72a03c1898052557406 •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47452 – netfilter: nf_tables: skip netdev events generated on netns removal
https://notcve.org/view.php?id=CVE-2021-47452
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: skip netdev events generated on netns removal syzbot reported following (harmless) WARN: WARNING: CPU: 1 PID: 2648 at net/netfilter/core.c:468 nft_netdev_unregister_hooks net/netfilter/nf_tables_api.c:230 [inline] nf_tables_unregister_hook include/net/netfilter/nf_tables.h:1090 [inline] __nft_release_basechain+0x138/0x640 net/netfilter/nf_tables_api.c:9524 nft_netdev_event net/netfilter/nft_chain_filter.c:351 [inline] ... • https://git.kernel.org/stable/c/767d1216bff82507c945e92fe719dff2083bb2f4 •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-47451 – netfilter: xt_IDLETIMER: fix panic that occurs when timer_type has garbage value
https://notcve.org/view.php?id=CVE-2021-47451
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_IDLETIMER: fix panic that occurs when timer_type has garbage value Currently, when the rule related to IDLETIMER is added, idletimer_tg timer structure is initialized by kmalloc on executing idletimer_tg_create function. However, in this process timer->timer_type is not defined to a specific value. Thus, timer->timer_type has garbage value and it occurs kernel panic. So, this commit fixes the panic by initializing timer->timer... • https://git.kernel.org/stable/c/68983a354a655c35d3fb204489d383a2a051fda7 •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2021-47450 – KVM: arm64: Fix host stage-2 PGD refcount
https://notcve.org/view.php?id=CVE-2021-47450
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix host stage-2 PGD refcount The KVM page-table library refcounts the pages of concatenated stage-2 PGDs individually. However, when running KVM in protected mode, the host's stage-2 PGD is currently managed by EL2 as a single high-order compound page, which can cause the refcount of the tail pages to reach 0 when they shouldn't, hence corrupting the page-table. Fix this by introducing a new hyp_split_page() helper in the EL2 p... • https://git.kernel.org/stable/c/1025c8c0c6accfcbdc8f52ca1940160f65cd87d6 •
CVSS: 7.1EPSS: 0%CPEs: 1EXPL: 0CVE-2021-47449 – ice: fix locking for Tx timestamp tracking flush
https://notcve.org/view.php?id=CVE-2021-47449
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: ice: fix locking for Tx timestamp tracking flush Commit 4dd0d5c33c3e ("ice: add lock around Tx timestamp tracker flush") added a lock around the Tx timestamp tracker flow which is used to cleanup any left over SKBs and prepare for device removal. This lock is problematic because it is being held around a call to ice_clear_phy_tstamp. The clear function takes a mutex to send a PHY write command to firmware. This could lead to a deadlock if t... • https://git.kernel.org/stable/c/46720ac66c21bf85e08823664b7b314b85e43f26 • CWE-129: Improper Validation of Array Index •
CVSS: 6.8EPSS: 0%CPEs: 2EXPL: 0CVE-2021-47448 – mptcp: fix possible stall on recvmsg()
https://notcve.org/view.php?id=CVE-2021-47448
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: mptcp: fix possible stall on recvmsg() recvmsg() can enter an infinite loop if the caller provides the MSG_WAITALL, the data present in the receive queue is not sufficient to fulfill the request, and no more data is received by the peer. When the above happens, mptcp_wait_data() will always return with no wait, as the MPTCP_DATA_READY flag checked by such function is set and never cleared in such code path. Leveraging the above syzbot was a... • https://git.kernel.org/stable/c/7a6a6cbc3e592e339ad23e4e8ede9a3f6160bda8 •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2021-47447 – drm/msm/a3xx: fix error handling in a3xx_gpu_init()
https://notcve.org/view.php?id=CVE-2021-47447
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: drm/msm/a3xx: fix error handling in a3xx_gpu_init() These error paths returned 1 on failure, instead of a negative error code. This would lead to an Oops in the caller. A second problem is that the check for "if (ret != -ENODATA)" did not work because "ret" was set to 1. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: drm/msm/a3xx: corrige el manejo de errores en a3xx_gpu_init() Estas rutas de error devolvieron 1 en caso de ... • https://git.kernel.org/stable/c/5785dd7a8ef0de8049f40a1a109de6a1bf17b479 •