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-2021-47244

The CVE-2021-47244 entry concerns the Linux kernel mptcp option parsing (mptcp_get_options). The vulnerability is a potential out-of-bounds read when parsing TCP options: if an option’s length is 1, the parser loops and reads the opcode byte; if the opcode is not TCPOPT_EOL or TCPOPT_NOP, it read...

CVE-2021-47244

In the Linux kernel, the following vulnerability has been resolved: mptcp: Fix out of bounds when parsing TCP options The TCP option parser in mptcp mptcpgetoptions could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte of the opcode, and if...

CVE-2021-47244 mptcp: Fix out of bounds when parsing TCP options

In the Linux kernel, the following vulnerability has been resolved: mptcp: Fix out of bounds when parsing TCP options The TCP option parser in mptcp mptcpgetoptions could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte of the opcode, and if...

CVE-2021-47244 mptcp: Fix out of bounds when parsing TCP options

In the Linux kernel, the following vulnerability has been resolved: mptcp: Fix out of bounds when parsing TCP options The TCP option parser in mptcp mptcpgetoptions could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte of the opcode, and if...

CVE-2021-47242 mptcp: fix soft lookup in subflow_error_report()

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix soft lookup in subflowerrorreport Maxim reported a soft lookup in subflowerrorreport: watchdog: BUG: soft lockup - CPU0 stuck for 22s! swapper/0:0 RIP: 0010:nativequeuedspinlockslowpath RSP: 0018:ffffa859c0003bc0 EFLAG...

CVE-2021-47242

CVE-2021-47242 affects the Linux kernel and is tied to a fix for an issue in MPTCP subflow error reporting. The root cause was a soft lookup caused when subflow_error_report() attempted to acquire mptcp_data_lock across call paths that could already hold other locks, triggering a soft lockup unde...

CVE-2021-47242

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix soft lookup in subflowerrorreport Maxim reported a soft lookup in subflowerrorreport: watchdog: BUG: soft lockup - CPU0 stuck for 22s! swapper/0:0 RIP: 0010:nativequeuedspinlockslowpath RSP: 0018:ffffa859c0003bc0 EFLAG...

CVE-2024-35894

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-2024-35910

In the Linux kernel, the following vulnerability has been resolved: tcp: properly terminate timers for kernel sockets We had various syzbot reports about tcp timers firing after the corresponding netns has been dismantled. Fortunately Josef Bacik could trigger the issue more often, and could test...

CVE-2024-35894

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...

UBUNTU-CVE-2024-35894

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

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-2024-35910

The CVE-2024-35910 issue affects the Linux kernel TCP timer handling for kernel sockets. Root cause: inet_csk_clear_xmit_timers() could be invoked with the socket lock held and uses del_timer(), risking timers running after the netns is freed. Fix: introduced inet_csk_clear_xmit_timers_sync() usi...

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-2024-35840

CVE-2024-35840 is a vulnerability in the Linux kernel’s Multipath TCP MPTCP implementation. It occurs because the subflowfinishconnect function may handle uninitialized data in certain fields if a specific MPTCP option OPTIONMPTCPMPJSYNACK is not correctly set during option parsing. This could le...

CVE-2024-27404

A race condition vulnerability was found in the Linux kernel remoteid function. Successful exploitation of the flaw can result in loss of system availability. Mitigation Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security...