CVE-2021-47366

A flaw was found in the Linux kernel's experimental Andrew File System driver, leading to corruption in reads. This issue could allow a user to read incorrect data if this file system is being used. Mitigation To mitigate this issue, prevent module kafs from being loaded. Please see...

CVE-2021-47358

A use-after-free flaw was in the Linux kernel’s Greybus UART driver when a user held a tty open. This flaw allows a local user to crash the system. Mitigation Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria...

CVE-2021-47357

A use-after-free flaw was found in the Linux kernel’s ATM networking card driver in how a user unloads the driver's module. This flaw allows a local user to crash the system. Mitigation To mitigate this issue, prevent module atm from being loaded. Please see...

CVE-2021-47370

In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure tx skbs always have the MPTCP ext Due to signed/unsigned comparison, the expression: info-sizegoal - skb-len 0 evaluates to true when the size goal is smaller than the skb size. That results in lack of tx cache...

CVE-2021-47378

A vulnerability was found in the Linux kernel's nvme-rdma driver where the driver failed to destroy a component cmid before another component qp was destroyed. This issue occurs when the kernel incorrectly manages memory during RDMA, leading to a potential use-after-free. Mitigation Red Hat has...

systemd-resolved: Unsigned name response in signed zone is not refused when DNSSEC=yes

A vulnerability was found in systemd-resolved. This issue may allow systemd-resolved to accept records of DNSSEC-signed domains even when they have no signature, allowing man-in-the-middles or the upstream DNS resolver to manipulate records...

CVE-2021-47489

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix even more out of bound writes from debugfs CVE-2021-42327 was fixed by: commit f23750b5b3d98653b31d4469592935ef6364ad67 Author: Thelford Williams Date: Wed Oct 13 16:04:13 2021 -0400 drm/amdgpu: fix out of bounds...

CVE-2021-47474

In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix bulk-buffer overflow The driver is using endpoint-sized buffers but must not assume that the tx and rx buffers are of equal size or a malicious device could overflow the slab-allocated receive buffer when doi...

CVE-2021-47414

In the Linux kernel, the following vulnerability has been resolved: riscv: Flush current cpu icache before other cpus On SiFive Unmatched, I recently fell onto the following BUG when booting: 0.000000 ftrace: allocating 36610 entries in 144 pages 0.000000 Oops - illegal instruction 1 0.000000...

CVE-2021-47430

In the Linux kernel, the following vulnerability has been resolved: x86/entry: Clear X86FEATURESMAP when CONFIGX86SMAP=n Commit 3c73b81a9164 "x86/entry, selftests: Further improve user entry sanity checks" added a warning if AC is set when in the kernel. Commit 662a0221893a3d "x86/entry: Fix AC...

CVE-2021-47427

In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi: Fix iscsitask use after free Commit d39df158518c "scsi: iscsi: Have abort handler get ref to conn" added iscsigetconn/iscsiputconn calls during abort handling but then also changed the handling of the case where we...

CVE-2021-47418

In the Linux kernel, the following vulnerability has been resolved: netsched: fix NULL deref in fifosetlimit syzbot reported another NULL deref in fifosetlimit 1 I could repro the issue with : unshare -n tc qd add dev lo root handle 1:0 tbf limit 200000 burst 70000 rate 100Mbit tc qd replace dev ...

CVE-2021-47497 nvmem: Fix shift-out-of-bound (UBSAN) with byte size cells

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 BITSPERBYTE the logic p &= GENMASKcell-nbits%BITSPERBYTE - 1, 0; will become undefined behavior because nbits modulo BITSPERBYT...

CVE-2021-47495

CVE-2021-47495 involves the Linux kernel usbnet vulnerability where a zero maxpacket caused an invalid division and a kernel oops. The description notes a sanity check for maxpacket and that a 0 value is nonsensical, leading to a failure to divide by it. The accompanying notes indicate a fix was ...

CVE-2021-47494 cfg80211: fix management registrations locking

In the Linux kernel, the following vulnerability has been resolved: cfg80211: fix management registrations locking The management registrations locking was broken, the list was locked for each wdev, but cfg80211mgmtregistrationsupdate iterated it without holding all the correct spinlocks, causing...

CVE-2021-47492

CVE-2021-47492 concerns a Linux kernel vulnerability in the memory management (mm) subsystem, specifically the THP collapse_file path. The issue arises because collapse_file does not explicitly check PG_writeback and uses page_has_private/try_to_release_page to filter writeback pages. This is pro...

CVE-2021-47489 drm/amdgpu: Fix even more out of bound writes from debugfs

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix even more out of bound writes from debugfs CVE-2021-42327 was fixed by: commit f23750b5b3d98653b31d4469592935ef6364ad67 Author: Thelford Williams Date: Wed Oct 13 16:04:13 2021 -0400 drm/amdgpu: fix out of bounds...

CVE-2021-47486

The Linux kernel contains a vulnerability in the riscv and bpf components due to a potential NULL dereference . Specifically, the bpf_jit_binary_free() function fails to check its argument; when the RISC-V BPF JIT fails to converge within NR_JIT_ITERATIONS steps, jit_data->header becomes NULL ...

CVE-2021-47485 IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields

In the Linux kernel, the following vulnerability has been resolved: IB/qib: Protect from buffer overflow in struct qibusersdmapkt fields Overflowing either addrlimit or bytestogo can allow userspace to trigger a buffer overflow of kernel memory. Check for overflows in all the places doing math on...

CVE-2021-47484 octeontx2-af: Fix possible null pointer dereference.

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Fix possible null pointer dereference. This patch fixes possible null pointer dereference in files "rvudebugfs.c" and "rvunix.c"...