CVE-2024-35917 s390/bpf: Fix bpf_plt pointer arithmetic

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Fix bpfplt pointer arithmetic Kui-Feng Lee reported a crash on s390x triggered by the dummystops/dummyinitptrarg test 1: 0x2 bpfstructopstestrun+0x156/0x250 sysbpf+0xa1a/0xd00 s390xsysbpf+0x44/0x50 dosyscall+0x244/0x300...

CVE-2024-35917 s390/bpf: Fix bpf_plt pointer arithmetic

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Fix bpfplt pointer arithmetic Kui-Feng Lee reported a crash on s390x triggered by the dummystops/dummyinitptrarg test 1: 0x2 bpfstructopstestrun+0x156/0x250 sysbpf+0xa1a/0xd00 s390xsysbpf+0x44/0x50 dosyscall+0x244/0x300...

CVE-2024-35905 bpf: Protect against int overflow for stack access size

In the Linux kernel, the following vulnerability has been resolved: bpf: Protect against int overflow for stack access size This patch re-introduces protection against the size of access to stack memory being negative; the access size can appear negative as a result of overflowing its signed int...

CVE-2024-35903 x86/bpf: Fix IP after emitting call depth accounting

In the Linux kernel, the following vulnerability has been resolved: x86/bpf: Fix IP after emitting call depth accounting Adjust the IP passed to emitpatch so it calculates the correct offset for the CALL instruction if x86calldepthemitaccounting emits code. Otherwise we will skip some instruction...

CVE-2024-35903 x86/bpf: Fix IP after emitting call depth accounting

In the Linux kernel, the following vulnerability has been resolved: x86/bpf: Fix IP after emitting call depth accounting Adjust the IP passed to emitpatch so it calculates the correct offset for the CALL instruction if x86calldepthemitaccounting emits code. Otherwise we will skip some instruction...

CVE-2024-35903

The CVE-2024-35903 entry: In the Linux kernel, x86/bpf: Fix IP after emitting call depth accounting. The issue adjusts the IP passed to emit_patch to compute the correct offset for a CALL when x86_call_depth_emit_accounting emits code; without this, instructions may be skipped and the system coul...

CVE-2024-35903 x86/bpf: Fix IP after emitting call depth accounting

In the Linux kernel, the following vulnerability has been resolved: x86/bpf: Fix IP after emitting call depth accounting Adjust the IP passed to emitpatch so it calculates the correct offset for the CALL instruction if x86calldepthemitaccounting emits code. Otherwise we will skip some instruction...

CVE-2024-35896 netfilter: validate user input for expected length

In the Linux kernel, the following vulnerability has been resolved: netfilter: validate user input for expected length I got multiple syzbot reports showing old bugs exposed by BPF after commit 20f2505fb436 "bpf: Try to avoid kzalloc in cgroup/s,getsockopt" setsockopt @optlen argument should be...

CVE-2024-35896 netfilter: validate user input for expected length

In the Linux kernel, the following vulnerability has been resolved: netfilter: validate user input for expected length I got multiple syzbot reports showing old bugs exposed by BPF after commit 20f2505fb436 "bpf: Try to avoid kzalloc in cgroup/s,getsockopt" setsockopt @optlen argument should be...

CVE-2024-35896 netfilter: validate user input for expected length

In the Linux kernel, the following vulnerability has been resolved: netfilter: validate user input for expected length I got multiple syzbot reports showing old bugs exposed by BPF after commit 20f2505fb436 "bpf: Try to avoid kzalloc in cgroup/s,getsockopt" setsockopt @optlen argument should be...

CVE-2024-35895 bpf, sockmap: Prevent lock inversion deadlock in map delete elem

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Prevent lock inversion deadlock in map delete elem syzkaller started using corpuses where a BPF tracing program deletes elements from a sockmap/sockhash map. Because BPF tracing programs can be invoked from any...

CVE-2024-35895

The CVE-2024-35895 vulnerability affects the Linux kernel, specifically the BPF sockmap/sockhash path. A deadlock could occur when map_delete_elem is invoked from a context where interrupts are disabled; the fix adds a hardirq-safety check to bail out if map_delete_elem runs in a non-hardirq-unsa...

CVE-2024-35895 bpf, sockmap: Prevent lock inversion deadlock in map delete elem

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Prevent lock inversion deadlock in map delete elem syzkaller started using corpuses where a BPF tracing program deletes elements from a sockmap/sockhash map. Because BPF tracing programs can be invoked from any...

CVE-2024-35895 bpf, sockmap: Prevent lock inversion deadlock in map delete elem

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Prevent lock inversion deadlock in map delete elem syzkaller started using corpuses where a BPF tracing program deletes elements from a sockmap/sockhash map. Because BPF tracing programs can be invoked from any...

CVE-2024-35894 mptcp: prevent BPF accessing lowat from a subflow socket.

In the Linux kernel, the following vulnerability has been resolved: mptcp: prevent BPF accessing lowat from a subflow socket. Alexei reported the following splat: WARNING: CPU: 32 PID: 3276 at net/mptcp/subflow.c:1430 subflowdataready+0x147/0x1c0 Modules linked in: dummy bpftestmodO last unloaded...

CVE-2024-35894 mptcp: prevent BPF accessing lowat from a subflow socket.

In the Linux kernel, the following vulnerability has been resolved: mptcp: prevent BPF accessing lowat from a subflow socket. Alexei reported the following splat: WARNING: CPU: 32 PID: 3276 at net/mptcp/subflow.c:1430 subflowdataready+0x147/0x1c0 Modules linked in: dummy bpftestmodO last unloaded...

CVE-2024-35894

CVE-2024-35894: In the Linux kernel, a mitigation for a subflow-level BPF access issue was implemented in mptcp by preventing BPF from accessing mptcp-level proto_ops from a subflow scope. The root cause was a misconfigured interaction where BPF could reach mptcp proto_ops through a tcp subflow, ...

CVE-2024-35894 mptcp: prevent BPF accessing lowat from a subflow socket.

In the Linux kernel, the following vulnerability has been resolved: mptcp: prevent BPF accessing lowat from a subflow socket. Alexei reported the following splat: WARNING: CPU: 32 PID: 3276 at net/mptcp/subflow.c:1430 subflowdataready+0x147/0x1c0 Modules linked in: dummy bpftestmodO last unloaded...

CVE-2024-35860 bpf: support deferring bpf_link dealloc to after RCU grace period

In the Linux kernel, the following vulnerability has been resolved: bpf: support deferring bpflink dealloc to after RCU grace period BPF link for some program types is passed as a "context" which can be used by those BPF programs to look up additional information. E.g., for multi-kprobes and...

CVE-2024-35860 bpf: support deferring bpf_link dealloc to after RCU grace period

In the Linux kernel, the following vulnerability has been resolved: bpf: support deferring bpflink dealloc to after RCU grace period BPF link for some program types is passed as a "context" which can be used by those BPF programs to look up additional information. E.g., for multi-kprobes and...