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,...

CVE-2022-50057 fs/ntfs3: Fix NULL deref in ntfs_update_mftmirr

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix NULL deref in ntfsupdatemftmirr If ntfsfillsuper wasn't called then sbi-sb will be equal to NULL. Code should check this ptr before dereferencing. Syzbot hit this issue via passing wrong mount param as can be seen...

CVE-2022-50058

CVE-2022-50058 affects the Linux kernel's vdpa_sim_blk: a missing initialization of nas and ngroups can cause a kernel NULL pointer dereference when creating a new vdpa_sim_blk device, leading to a panic in vhost_iotlb_add_range_ctx. The issue arises from commit changes adding nas/ngroups to vdpa...

CVE-2022-50056 fs/ntfs3: Fix missing i_op in ntfs_read_mft

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix missing iop in ntfsreadmft There is null pointer dereference because iop == NULL. The bug happens because we don't initialize iop for records in $Extend...

CVE-2022-50054 iavf: Fix NULL pointer dereference in iavf_get_link_ksettings

In the Linux kernel, the following vulnerability has been resolved: iavf: Fix NULL pointer dereference in iavfgetlinkksettings Fix possible NULL pointer dereference, due to freeing of adapter-vfres in iavfinitgetresources. Previous commit introduced a regression, where receiving...

CVE-2022-50051 ASoC: SOF: debug: Fix potential buffer overflow by snprintf()

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: debug: Fix potential buffer overflow by snprintf snprintf returns the would-be-filled size when the string overflows the given buffer size, hence using this value may result in the buffer overflow although it's...

CVE-2022-50051

CVE-2022-50051 affects the Linux kernel’s ASoC: SOF subsystem, specifically a debug path where a buffer overflow could occur due to using snprintf(). The vulnerability arises because snprintf() returns the would‑be‑filled size when the string exceeds the destination buffer, which can lead to an o...

CVE-2022-50049 ASoC: DPCM: Don't pick up BE without substream

In the Linux kernel, the following vulnerability has been resolved: ASoC: DPCM: Don't pick up BE without substream When DPCM tries to add valid BE connections at dpcmaddpaths, it doesn't check whether the picked BE actually supports for the given stream direction. Due to that, when an asymmetric ...