CVSS: 8.4EPSS: 0%CPEs: 4EXPL: 0CVE-2021-46973 – net: qrtr: Avoid potential use after free in MHI send
https://notcve.org/view.php?id=CVE-2021-46973
27 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: net: qrtr: Avoid potential use after free in MHI send It is possible that the MHI ul_callback will be invoked immediately following the queueing of the skb for transmission, leading to the callback decrementing the refcount of the associated sk and freeing the skb. As such the dereference of skb and the increment of the sk refcount must happen before the skb is queued, to avoid the skb to be used after free and potentially the sk to drop it... • https://git.kernel.org/stable/c/6e728f321393b1fce9e1c2c3e55f9f7c15991321 • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-46972 – ovl: fix leaked dentry
https://notcve.org/view.php?id=CVE-2021-46972
27 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: ovl: fix leaked dentry Since commit 6815f479ca90 ("ovl: use only uppermetacopy state in ovl_lookup()"), overlayfs doesn't put temporary dentry when there is a metacopy error, which leads to dentry leaks when shutting down the related superblock: overlayfs: refusing to follow metacopy origin for (/file0) ... BUG: Dentry (____ptrval____){i=3f33,n=file3} still in use (1) [unmount of overlay overlay] ... WARNING: CPU: 1 PID: 432 at umount_check... • https://git.kernel.org/stable/c/6815f479ca90ee7fd2e28b2a420f796b974155fe • CWE-402: Transmission of Private Resources into a New Sphere ('Resource Leak') •
CVSS: 3.3EPSS: 0%CPEs: 5EXPL: 0CVE-2021-46971 – perf/core: Fix unconditional security_locked_down() call
https://notcve.org/view.php?id=CVE-2021-46971
27 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix unconditional security_locked_down() call Currently, the lockdown state is queried unconditionally, even though its result is used only if the PERF_SAMPLE_REGS_INTR bit is set in attr.sample_type. While that doesn't matter in case of the Lockdown LSM, it causes trouble with the SELinux's lockdown hook implementation. SELinux implements the locked_down hook with a check whether the current task's type has the corresponding "lo... • https://git.kernel.org/stable/c/b0c8fdc7fdb77586c3d1937050925b960743306e •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-46967 – vhost-vdpa: fix vm_flags for virtqueue doorbell mapping
https://notcve.org/view.php?id=CVE-2021-46967
27 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: vhost-vdpa: fix vm_flags for virtqueue doorbell mapping The virtqueue doorbell is usually implemented via registeres but we don't provide the necessary vma->flags like VM_PFNMAP. This may cause several issues e.g when userspace tries to map the doorbell via vhost IOTLB, kernel may panic due to the page is not backed by page structure. This patch fixes this by setting the necessary vm_flags. With this patch, try to map doorbell via IOTLB wil... • https://git.kernel.org/stable/c/ddd89d0a059d8e9740c75a97e0efe9bf07ee51f9 •
CVSS: 6.7EPSS: 0%CPEs: 11EXPL: 0CVE-2021-46966 – ACPI: custom_method: fix potential use-after-free issue
https://notcve.org/view.php?id=CVE-2021-46966
27 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: ACPI: custom_method: fix potential use-after-free issue In cm_write(), buf is always freed when reaching the end of the function. If the requested count is less than table.length, the allocated buffer will be freed but subsequent calls to cm_write() will still try to access it. Remove the unconditional kfree(buf) at the end of the function and set the buf to NULL in the -EINVAL error path to match the rest of function. En el kernel de Linux... • https://git.kernel.org/stable/c/4bda2b79a9d04c8ba31681c66e95877dbb433416 •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2021-46963 – scsi: qla2xxx: Fix crash in qla2xxx_mqueuecommand()
https://notcve.org/view.php?id=CVE-2021-46963
27 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix crash in qla2xxx_mqueuecommand() RIP: 0010:kmem_cache_free+0xfa/0x1b0 Call Trace: qla2xxx_mqueuecommand+0x2b5/0x2c0 [qla2xxx] scsi_queue_rq+0x5e2/0xa40 __blk_mq_try_issue_directly+0x128/0x1d0 blk_mq_request_issue_directly+0x4e/0xb0 Fix incorrect call to free srb in qla2xxx_mqueuecommand(), as srb is now allocated by upper layers. This fixes smatch warning of srb unintended free. En el kernel de Linux, se ha resuelto la si... • https://git.kernel.org/stable/c/64a8c5018a4b21b04a756a56c495ef47c14e92d9 •
CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0CVE-2021-46962 – mmc: uniphier-sd: Fix a resource leak in the remove function
https://notcve.org/view.php?id=CVE-2021-46962
27 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: mmc: uniphier-sd: Fix a resource leak in the remove function A 'tmio_mmc_host_free()' call is missing in the remove function, in order to balance a 'tmio_mmc_host_alloc()' call in the probe. This is done in the error handling path of the probe, but not in the remove function. Add the missing call. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mmc: uniphier-sd: corrige una fuga de recursos en la función de eliminación Fa... • https://git.kernel.org/stable/c/3fd784f745dd1747863775a99ec749619ee6759c •
CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0CVE-2021-46961 – irqchip/gic-v3: Do not enable irqs when handling spurious interrups
https://notcve.org/view.php?id=CVE-2021-46961
27 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v3: Do not enable irqs when handling spurious interrups We triggered the following error while running our 4.19 kernel with the pseudo-NMI patches backported to it: [ 14.816231] ------------[ cut here ]------------ [ 14.816231] kernel BUG at irq.c:99! [ 14.816232] Internal error: Oops - BUG: 0 [#1] SMP [ 14.816232] Process swapper/0 (pid: 0, stack limit = 0x(____ptrval____)) [ 14.816233] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G ... • https://git.kernel.org/stable/c/3f1f3234bc2db1c16b9818b9a15a5d58ad45251c •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2021-46960 – cifs: Return correct error code from smb2_get_enc_key
https://notcve.org/view.php?id=CVE-2021-46960
27 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: cifs: Return correct error code from smb2_get_enc_key Avoid a warning if the error percolates back up: [440700.376476] CIFS VFS: \\otters.example.com crypt_message: Could not get encryption key [440700.386947] ------------[ cut here ]------------ [440700.386948] err = 1 [440700.386977] WARNING: CPU: 11 PID: 2733 at /build/linux-hwe-5.4-p6lk6L/linux-hwe-5.4-5.4.0/lib/errseq.c:74 errseq_set+0x5c/0x70 ... [440700.397304] CPU: 11 PID: 2733 Comm... • https://git.kernel.org/stable/c/61cfac6f267dabcf2740a7ec8a0295833b28b5f5 •
CVSS: 4.7EPSS: 0%CPEs: 4EXPL: 0CVE-2021-46958 – btrfs: fix race between transaction aborts and fsyncs leading to use-after-free
https://notcve.org/view.php?id=CVE-2021-46958
27 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: btrfs: fix race between transaction aborts and fsyncs leading to use-after-free There is a race between a task aborting a transaction during a commit, a task doing an fsync and the transaction kthread, which leads to an use-after-free of the log root tree. When this happens, it results in a stack trace like the following: BTRFS info (device dm-0): forced readonly BTRFS warning (device dm-0): Skipping commit of aborted transaction. BTRFS: er... • https://git.kernel.org/stable/c/ef67963dac255b293e19815ea3d440567be4626f •