CVE-2022-50078

CVE-2022-50078 describes a resolved Linux kernel issue in the tracing subsystem (eprobes). The root cause is a NULL pointer dereference that occurs when event probes (eprobes) try to retrieve the instruction pointer (RIP) using registers, while eprobes do not use pt_regs. The fix, implemented in ...

CVE-2022-50077 apparmor: fix reference count leak in aa_pivotroot()

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix reference count leak in aapivotroot The aapivotroot function has a reference counting bug in a specific path. When aareplacecurrentlabel returns on success, the function forgets to decrement the reference count of...

CVE-2022-50077

The CVE-2022-50077 entry concerns the Linux kernel AppArmor path aa_pivotroot, where a reference-count bug leaks a previously incremented “target” when aa_replace_current_label() returns success. The fix is to decrement the refcount of target in that code path (build_pivotroot() increased it earl...

CVE-2022-50073 net: tap: NULL pointer derefence in dev_parse_header_protocol when skb->dev is null

In the Linux kernel, the following vulnerability has been resolved: net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null Fixes a NULL pointer derefence bug triggered from tap driver. When tapgetuser calls virtionethdrtoskb the skb-dev is null in tap.c skb-dev is set aft...

CVE-2022-50072 NFSv4/pnfs: Fix a use-after-free bug in open

In the Linux kernel, the following vulnerability has been resolved: NFSv4/pnfs: Fix a use-after-free bug in open If someone cancels the open RPC call, then we must not try to free either the open slot or the layoutget operation arguments, since they are likely still in use by the hung RPC call...

CVE-2022-50070

CVE-2022-50070 affects the Linux kernel and relates to the mptcp datapath: a transmit could race with mptcp_close(), causing a closed subflow (ssk) to be re-transmitted. The root cause is a subflow-state check performed before acquiring the socket lock, enabling re-transmission on an already clos...

CVE-2022-50071 mptcp: move subflow cleanup in mptcp_destroy_common()

In the Linux kernel, the following vulnerability has been resolved: mptcp: move subflow cleanup in mptcpdestroycommon If the mptcp socket creation fails due to a CGROUPINETSOCKCREATE eBPF program, the MPTCP protocol ends-up leaking all the subflows: the related cleanup happens in mptcpdestroysock...

CVE-2022-50069

CVE-2022-50069 concerns the Linux kernel BPF subsystem. The root cause is that bpf_sys_bpf() may copy instruction data from a kernel address (via bpfptr_t) without validating it, since copy_from_bpfptr() can dereference in-kernel pointers. This can lead to a use-after-free/invalid dereference in ...

CVE-2022-50069 BPF: Fix potential bad pointer dereference in bpf_sys_bpf()

In the Linux kernel, the following vulnerability has been resolved: BPF: Fix potential bad pointer dereference in bpfsysbpf The bpfsysbpf helper function allows an eBPF program to load another eBPF program from within the kernel. In this case the argument union bpfattr pointer as well as the insn...

CVE-2022-50068

CVE-2022-50068 affects the Linux kernel DRM TTM path (drm/ttm). The issue is a null pointer dereference in ttm_bo_validate during and after bo initialization, triggered by inspecting a NULL bo->resource in mem_type handling, potentially causing a kernel crash (general protection fault) and a l...

CVE-2022-50068 drm/ttm: Fix dummy res NULL ptr deref bug

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Fix dummy res NULL ptr deref bug Check the bo-resource value before accessing the resource memtype. v2: Fix commit description unwrapped warning 40.191227 T184 general protection fault, probably for non-canonical address...

CVE-2022-50068 drm/ttm: Fix dummy res NULL ptr deref bug

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Fix dummy res NULL ptr deref bug Check the bo-resource value before accessing the resource memtype. v2: Fix commit description unwrapped warning 40.191227 T184 general protection fault, probably for non-canonical address...

CVE-2022-50065 virtio_net: fix memory leak inside XPD_TX with mergeable

In the Linux kernel, the following vulnerability has been resolved: virtionet: fix memory leak inside XPDTX with mergeable When we call xdpconvertbufftoframe to get xdpf, if it returns NULL, we should check if xdppage was allocated by xdplinearizepage. If it is newly allocated, it should be freed...

CVE-2022-50064 virtio-blk: Avoid use-after-free on suspend/resume

In the Linux kernel, the following vulnerability has been resolved: virtio-blk: Avoid use-after-free on suspend/resume hctx-userdata is set to vq in virtblkinithctx. However, vq is freed on suspend and reallocated on resume. So, hctx-userdata is invalid after resume, and it will cause...

CVE-2022-50063 net: dsa: felix: suppress non-changes to the tagging protocol

In the Linux kernel, the following vulnerability has been resolved: net: dsa: felix: suppress non-changes to the tagging protocol The way in which dsatreechangetagproto works is that when dsatreenotify fails, it doesn't know whether the operation failed mid way in a multi-switch tree, or it faile...

CVE-2022-50062 net: bgmac: Fix a BUG triggered by wrong bytes_compl

In the Linux kernel, the following vulnerability has been resolved: net: bgmac: Fix a BUG triggered by wrong bytescompl On one of our machines we got: kernel BUG at lib/dynamicqueuelimits.c:27! Internal error: Oops - BUG: 0 1 PREEMPT SMP ARM CPU: 0 PID: 1166 Comm: irq/41-bgmac Tainted: G W O...

CVE-2022-50062 net: bgmac: Fix a BUG triggered by wrong bytes_compl

In the Linux kernel, the following vulnerability has been resolved: net: bgmac: Fix a BUG triggered by wrong bytescompl On one of our machines we got: kernel BUG at lib/dynamicqueuelimits.c:27! Internal error: Oops - BUG: 0 1 PREEMPT SMP ARM CPU: 0 PID: 1166 Comm: irq/41-bgmac Tainted: G W O...

CVE-2022-50061

CVE-2022-50061 concerns the Linux kernel pinctrl nomadik path. The root cause is a refcount leak in nmk_pinctrl_dt_subnode_to_map: of_parse_phandle() returns a node pointer with incremented refcount, and of_node_put() was not called when the node is no longer needed. The issue is resolved by addi...

CVE-2022-50060

The CVE-2022-50060 entry concerns the Linux kernel and relates to octeontx2-af. The issue is a resource leak of MCAM entries during teardown in the FLR path: if a PF/VF detaches, the graceful shutdown may leave MCAM entries allocated. The fix ensures MCAM entries are freed even when LF is detache...

CVE-2022-50059

CVE-2022-50059 is documented as a Linux kernel vulnerability affecting the Ceph integration: when handle_cap_grant is called on an IMPORT operation, the snap_rwsem is held and not reliably released, which could lead to a deadlock. The issue is described across multiple vendor advisories (EulerOS,...