CVE-2021-28971

In intelpmudrainpebsnhm in arch/x86/events/intel/ds.c in the Linux kernel through 5.11.8 on some Haswell CPUs, userspace applications such as perf-fuzzer can cause a system crash because the PEBS status in a PEBS record is mishandled, aka CID-d88d05a9e0b6...

Buffer overflow

In drivers/pci/hotplug/rpadlparsysfs.c in the Linux kernel through 5.11.8, the RPA PCI Hotplug driver has a user-tolerable buffer overflow when writing a new device name to the driver from userspace, allowing userspace to write data to the kernel stack frame directly. This occurs because...

UBUNTU-CVE-2021-28964

A race condition was discovered in getoldroot in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service BUG because of a lack of locking on an extent buffer before a cloning operation, aka CID-dbcc7d57bffc...

CVE-2021-28964

A race condition was discovered in getoldroot in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service BUG because of a lack of locking on an extent buffer before a cloning operation, aka CID-dbcc7d57bffc...

CVE-2020-27170

An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-f232326f6966. This...

Design/Logic Flaw

An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-f232326f6966. This...

CVE-2020-27171

An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c has an off-by-one error with a resultant integer underflow affecting out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information...

CVE-2020-27171

An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c has an off-by-one error with a resultant integer underflow affecting out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information...

Buffer overflow

An issue was discovered in the Linux kernel through 5.11.8. The sound/soc/qcom/sdm845.c soundwire device driver has a buffer overflow when an unexpected port ID number is encountered, aka CID-1c668e1c0a0f. This has been fixed in 5.12-rc4...

Design/Logic Flaw

An issue was discovered in fs/fuse/fusei.h in the Linux kernel before 5.11.8. A "stall on CPU" can occur because a retry loop continually finds the same bad inode, aka CID-775c5033a0d1...

An issue was discovered in the Linux kernel through 5.11.6. fastrpc_internal_invoke in drivers/misc/fastrpc.c does not prevent user applications from sending kernel RPC messages aka CID-20c40794eb85. This is a related issue to CVE-2019-2308.

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CVE-2021-28375

An issue was discovered in the Linux kernel through 5.11.6. fastrpcinternalinvoke in drivers/misc/fastrpc.c does not prevent user applications from sending kernel RPC messages, aka CID-20c40794eb85. This is a related issue to CVE-2019-2308...

Sql injection

An issue was discovered in the Linux kernel through 5.11.6. fastrpcinternalinvoke in drivers/misc/fastrpc.c does not prevent user applications from sending kernel RPC messages, aka CID-20c40794eb85. This is a related issue to CVE-2019-2308...

CVE-2021-28375

The CVE-2021-28375 issue affects the Linux kernel up to 5.11.6, specifically fastrpc_internal_invoke in drivers/misc/fastrpc.c, which does not prevent user-space processes from sending kernel RPC messages. This is a local, privilege-escalation risk (as indicated by related CVE-2019-2308) that cou...

Denial Of Service (DoS)

Linux Kernel is vulnerable to denial of service DoS. The vulnerability is possible because of an issue was discovered in drivers/accessibility/speakup/spkttyio.c. Local attackers on systems with the speakup driver could cause a local denial of service attack, aka CID-d41227544427. This occurs...

nbd_add_socket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndb_queue_rq use-after-free that could be triggered by local attackers (with access to the nbd device) via an I/O request at a certain point during device setup aka CID-b98e762e3d71.

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Fedora 33 : kernel (2021-879c756377)

The remote Fedora 33 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2021-879c756377 advisory. - An issue was discovered in the Linux kernel through 5.10.11. PI futexes have a kernel stack use-after-free during fault handling, allowing local...

CVE-2021-3348

nbdaddsocket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndbqueuerq use-after-free that could be triggered by local attackers with access to the nbd device via an I/O request at a certain point during device setup, aka CID-b98e762e3d71...

NICER Protocol Deep Dive: Internet Exposure of DNS-over-TLS

Welcome to the NICER Protocol Deep Dive blog series! When we started researching what all was out on the internet way back in January, we had no idea we'd end up with a hefty, 137-page tome of a research report. The sheer length of such a thing might put off folks who might otherwise learn a thin...

mwifiex_cmd_802_11_ad_hoc_start in drivers/net/wireless/marvell/mwifiex/join.c in the Linux kernel through 5.10.4 might allow remote attackers to execute arbitrary code via a long SSID value aka CID-5c455c5ab332.

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