CVE-2021-47657

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Ensure that objs is not NULL in virtiogpuarrayputfree If virtiogpuobjectshmeminit fails e.g. due to fault injection, as it happened in the bug report by syzbot, virtiogpuarrayputfree could be called with objs equal to...

CVE-2021-47657

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Ensure that objs is not NULL in virtiogpuarrayputfree If virtiogpuobjectshmeminit fails e.g. due to fault injection, as it happened in the bug report by syzbot, virtiogpuarrayputfree could be called with objs equal to...

UBUNTU-CVE-2021-47657

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Ensure that objs is not NULL in virtiogpuarrayputfree If virtiogpuobjectshmeminit fails e.g. due to fault injection, as it happened in the bug report by syzbot, virtiogpuarrayputfree could be called with objs equal to...

CVE-2022-49723 drm/i915/reset: Fix error_state_read ptr + offset use

In the Linux kernel, the following vulnerability has been resolved: drm/i915/reset: Fix errorstateread ptr + offset use Fix our pointer offset usage in errorstateread when there is no i915gpucoredump but buf offset is non-zero. This fixes a kernel page fault can happen when multiple tests are...

CVE-2022-49723

The CVE-2022-49723 issue affects the Linux kernel’s i915 DRM reset path. The root cause is incorrect pointer offset handling in error_state_read when there is no i915_gpu_coredump but a non-zero buffer offset, which could lead to a kernel page fault under concurrent engine resets and error_state ...

CVE-2022-49723 drm/i915/reset: Fix error_state_read ptr + offset use

In the Linux kernel, the following vulnerability has been resolved: drm/i915/reset: Fix errorstateread ptr + offset use Fix our pointer offset usage in errorstateread when there is no i915gpucoredump but buf offset is non-zero. This fixes a kernel page fault can happen when multiple tests are...

CVE-2022-49723

In the Linux kernel, the following vulnerability has been resolved: drm/i915/reset: Fix errorstateread ptr + offset use Fix our pointer offset usage in errorstateread when there is no i915gpucoredump but buf offset is non-zero. This fixes a kernel page fault can happen when multiple tests are...

CVE-2022-49722

In the Linux kernel, the following vulnerability has been resolved: ice: Fix memory corruption in VF driver Disable VF's RX/TX queues, when it's disabled. VF can have queues enabled, when it requests a reset. If PF driver assumes that VF is disabled, while VF still has queues configured, VF may...

CVE-2022-49559 KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2 Remove WARNs that sanity check that KVM never lets a triple fault for L2 escape and incorrectly end up in L1. In normal operation, the sanity check is...

CVE-2022-49559 KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2 Remove WARNs that sanity check that KVM never lets a triple fault for L2 escape and incorrectly end up in L1. In normal operation, the sanity check is...

CVE-2022-49559

CVE-2022-49559 (Linux kernel, KVM/x86) is resolved. The issue involved dropping WARNs that incorrectly assumed KVM cannot let a triple fault (KVM_REQ_TRIPLE_FAULT) escape from L2 to L1. The vulnerability could be triggered when userspace injects a machine check while L2 is active with CR4.MCE=0, ...

CVE-2022-49559

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2 Remove WARNs that sanity check that KVM never lets a triple fault for L2 escape and incorrectly end up in L1. In normal operation, the sanity check is...

CVE-2022-49552

CVE-2022-49552 affects the Linux kernel. The issue arises in the BPF JIT blinding logic where ld_imm64 addresses to subprogs are misidentified as normal instructions, causing a page fault in kernel mode. The root cause is the two-phase JIT process for subprogs; the first phase blinds and the seco...

CVE-2022-49552 bpf: Fix combination of jit blinding and pointers to bpf subprogs.

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix combination of jit blinding and pointers to bpf subprogs. The combination of jit blinding and pointers to bpf subprogs causes: 36.989548 BUG: unable to handle page fault for address: 0000000100000001 36.990342 PF:...

CVE-2022-49552 bpf: Fix combination of jit blinding and pointers to bpf subprogs.

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix combination of jit blinding and pointers to bpf subprogs. The combination of jit blinding and pointers to bpf subprogs causes: 36.989548 BUG: unable to handle page fault for address: 0000000100000001 36.990342 PF:...

CVE-2022-49552

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix combination of jit blinding and pointers to bpf subprogs. The combination of jit blinding and pointers to bpf subprogs causes: 36.989548 BUG: unable to handle page fault for address: 0000000100000001 36.990342 PF:...

CVE-2022-49526 md/bitmap: don't set sb values if can't pass sanity check

In the Linux kernel, the following vulnerability has been resolved: md/bitmap: don't set sb values if can't pass sanity check If bitmap area contains invalid data, kernel will crash then mdadm triggers "Segmentation fault". This is cluster-md speical bug. In non-clustered env, mdadm will handle...

CVE-2022-49526 md/bitmap: don't set sb values if can't pass sanity check

In the Linux kernel, the following vulnerability has been resolved: md/bitmap: don't set sb values if can't pass sanity check If bitmap area contains invalid data, kernel will crash then mdadm triggers "Segmentation fault". This is cluster-md speical bug. In non-clustered env, mdadm will handle...

CVE-2022-49526

CVE-2022-49526 - Linux kernel md/bitmap issue : In clustered MD (md-cluster) setups, the code path md_bitmap_read_sb can permit a faulty bitmap to pass sanity checks, allowing the chunksize to be assigned even when the bitmap data is invalid. This leads to a division error (DIV_ROUND_UP_SECTOR_T)...

CVE-2022-49526

In the Linux kernel, the following vulnerability has been resolved: md/bitmap: don't set sb values if can't pass sanity check If bitmap area contains invalid data, kernel will crash then mdadm triggers "Segmentation fault". This is cluster-md speical bug. In non-clustered env, mdadm will handle...