In the Linux kernel, the following vulnerability has been resolved:
sctp: add mutual exclusion in proc_sctp_do_udp_port()
We must serialize calls to sctp_udp_sock_stop() and sctp_udp_sock_start() or risk a crash as syzbot reported:
Oops: general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f] CPU: 1 UID: 0 PID: 6551 Comm: syz.1.44 Not tainted 6.14.0-syzkaller-g7f2ff7b62617 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:kernel_sock_shutdown+0x47/0x70 net/socket.c:3653 Call Trace: <TASK> udp_tunnel_sock_release+0x68/0x80 net/ipv4/udp_tunnel_core.c:181 sctp_udp_sock_stop+0x71/0x160 net/sctp/protocol.c:930 proc_sctp_do_udp_port+0x264/0x450 net/sctp/sysctl.c:553 proc_sys_call_handler+0x3d0/0x5b0 fs/proc/proc_sysctl.c:601 iter_file_splice_write+0x91c/0x1150 fs/splice.c:738 do_splice_from fs/splice.c:935 [inline] direct_splice_actor+0x18f/0x6c0 fs/splice.c:1158 splice_direct_to_actor+0x342/0xa30 fs/splice.c:1102 do_splice_direct_actor fs/splice.c:1201 [inline] do_splice_direct+0x174/0x240 fs/splice.c:1227 do_sendfile+0xafd/0xe50 fs/read_write.c:1368 __do_sys_sendfile64 fs/read_write.c:1429 [inline] __se_sys_sendfile64 fs/read_write.c:1415 [inline] __x64_sys_sendfile64+0x1d8/0x220 fs/read_write.c:1415 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-tools-develUpgrade kernel-livepatch-5.15.184-125.189Upgrade bpftool-debuginfoUpgrade kernel-develUpgrade bpftoolUpgrade perfUpgrade python-perfUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-toolsUpgrade perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade python-perf-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-livepatch-5.15.184-125.190Upgrade kernel-headersUpgrade kernel | Jun 24, 2025 | Apr 16, 2025 |
| Amazon_linux_2023 | — | Upgrade python3-perfUpgrade kernelUpgrade kernel-headersUpgrade kernel-debuginfo-common-x86_64Upgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel6.12Upgrade kernel-libbpf-staticUpgrade python3-perf6.12Upgrade kernel-debuginfoUpgrade kernel-tools-develUpgrade python3-perf6.12-debuginfoUpgrade kernel-libbpfUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel-modules-extraUpgrade kernel6.12-modules-extraUpgrade kernel6.12-debuginfoUpgrade perf6.12Upgrade kernel-libbpf-develUpgrade kernel-livepatch-6.12.23-29.97Upgrade kernel-tools-debuginfoUpgrade kernel-livepatch-6.1.140-154.222Upgrade python3-perf-debuginfoUpgrade kernel-modules-extra-commonUpgrade perfUpgrade perf-debuginfoUpgrade perf6.12-debuginfoUpgrade kernel-develUpgrade kernel-toolsUpgrade kernel-debuginfo-common-aarch64Upgrade bpftool-debuginfoUpgrade kernel-libbpf-debuginfoUpgrade bpftool | Jun 24, 2025 | Apr 16, 2025 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | May 15, 2025 | Apr 16, 2025 |
| Oracle_linux | — | Upgrade kernel-uek | Jul 17, 2025 | Apr 16, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Apr 16, 2025 |
| Suse | — | Upgrade dtb-caviumUpgrade dtb-exynosUpgrade reiserfs-kmp-rtUpgrade kernel-azure-optionalUpgrade kernel-debug-vdsoUpgrade dtb-allwinnerUpgrade kernel-default-develUpgrade dlm-kmp-rtUpgrade kernel-kvmsmall-vdsoUpgrade kernel-source-azureUpgrade kernel-source-vanillaUpgrade kselftests-kmp-64kbUpgrade kernel-rt-extraUpgrade dlm-kmp-64kbUpgrade kernel-azure-vdsoUpgrade reiserfs-kmp-64kbUpgrade dtb-appleUpgrade dtb-broadcomUpgrade cluster-md-kmp-64kbUpgrade ocfs2-kmp-defaultUpgrade dtb-socionextUpgrade kernel-azure-develUpgrade dtb-sprdUpgrade kernel-default-livepatchUpgrade kernel-rt-vdsoUpgrade kernel-rt_debug-develUpgrade kernel-syms-rtUpgrade gfs2-kmp-azureUpgrade dtb-marvellUpgrade kernel-rtUpgrade kernel-rt-optionalUpgrade kernel-syms-azureUpgrade dtb-lgUpgrade kselftests-kmp-azureUpgrade dtb-amdUpgrade kernel-64kbUpgrade kernel-rt-livepatch-develUpgrade kernel-source-rtUpgrade gfs2-kmp-defaultUpgrade kernel-64kb-extraUpgrade kernel-azureUpgrade kernel-default-baseUpgrade kernel-sourceUpgrade kernel-rt_debugUpgrade ocfs2-kmp-64kbUpgrade kernel-docs-htmlUpgrade kernel-obs-buildUpgrade dtb-alteraUpgrade kernel-azure-extraUpgrade dtb-freescaleUpgrade dtb-amazonUpgrade kernel-devel-azureUpgrade dlm-kmp-defaultUpgrade kernel-rt_debug-vdsoUpgrade kernel-default-vdsoUpgrade kernel-obs-qaUpgrade kernel-default-extraUpgrade kernel-64kb-develUpgrade gfs2-kmp-64kbUpgrade dtb-mediatekUpgrade cluster-md-kmp-defaultUpgrade kernel-rt-develUpgrade kernel-default-livepatch-develUpgrade kernel-debugUpgrade dtb-xilinxUpgrade dtb-rockchipUpgrade kernel-develUpgrade dtb-nvidiaUpgrade reiserfs-kmp-azureUpgrade dtb-qcomUpgrade kernel-symsUpgrade kernel-docsUpgrade kernel-devel-rtUpgrade kernel-debug-develUpgrade gfs2-kmp-rtUpgrade dtb-amlogicUpgrade reiserfs-kmp-defaultUpgrade kselftests-kmp-rtUpgrade kernel-kvmsmallUpgrade kernel-default-optionalUpgrade kernel-default-base-rebuildUpgrade kernel-macrosUpgrade kselftests-kmp-defaultUpgrade cluster-md-kmp-rtUpgrade ocfs2-kmp-rtUpgrade dtb-apmUpgrade ocfs2-kmp-azureUpgrade kernel-zfcpdumpUpgrade kernel-kvmsmall-develUpgrade kernel-64kb-optionalUpgrade dtb-hisiliconUpgrade dtb-armUpgrade dtb-renesasUpgrade kernel-defaultUpgrade dlm-kmp-azureUpgrade cluster-md-kmp-azure | Dec 5, 2025 | May 21, 2025 |
| Ubuntu | — | Upgrade linux-image-6.11.0-1014-raspiUpgrade linux-image-6.14.0-1007-azureUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-5.15.0-1087-gcp-fipsUpgrade linux-image-virtualUpgrade linux-image-oracleUpgrade linux-image-lowlatency-64k-6.11Upgrade linux-image-azure-fips-5.15Upgrade linux-image-kvmUpgrade linux-image-gcp-6.8Upgrade linux-image-gkeop-5.15Upgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-gcp-64kUpgrade linux-image-raspi-nolpaeUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.8.0-1041-aws-64kUpgrade linux-image-aws-fips-5.15Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-5.15.0-144-generic-64kUpgrade linux-image-6.14.0-1007-azure-fdeUpgrade linux-image-lowlatency-5.15Upgrade linux-image-6.8.0-1029-azure-nvidiaUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.11.0-28-generic-64kUpgrade linux-image-6.14.0-1008-gcp-64kUpgrade linux-image-5.15.0-1082-nvidia-lowlatencyUpgrade linux-image-nvidia-6.8Upgrade linux-image-raspi-6.8Upgrade linux-image-6.8.0-1038-gkeUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-aws-5.15Upgrade linux-image-realtime-6.8.1Upgrade linux-image-lowlatency-6.8Upgrade linux-image-5.15.0-1084-kvmUpgrade linux-image-5.15.0-1088-realtimeUpgrade linux-image-5.15.0-1080-ibmUpgrade linux-image-aws-fipsUpgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-virtual-5.15Upgrade linux-image-azure-5.15Upgrade linux-image-gkeUpgrade linux-image-gke-64k-6.8Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-6.8.0-1039-ibmUpgrade linux-image-5.15.0-1083-raspiUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-6.8.0-1038-gke-64kUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-6.11.0-1016-gcpUpgrade linux-image-azure-6.8Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-oem-22.04dUpgrade linux-image-6.8.0-1044-azure-fipsUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-6.11.0-1015-lowlatencyUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-nvidia-tegra-igxUpgrade linux-image-6.8.0-1038-oracleUpgrade linux-image-6.8.0-1042-gcp-64kUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-6.8.1-1036-realtimeUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-5.15.0-1070-gkeopUpgrade linux-image-ibm-5.15Upgrade linux-image-oem-20.04Upgrade linux-image-5.15.0-1085-gkeUpgrade linux-image-oracle-6.8Upgrade linux-image-nvidia-64kUpgrade linux-image-5.15.0-1030-nvidia-tegra-igxUpgrade linux-image-realtimeUpgrade linux-image-intel-iotgUpgrade linux-image-6.14.0-22-genericUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-6.14.0-1007-oracleUpgrade linux-image-6.11.0-1017-oracleUpgrade linux-image-azure-cvmUpgrade linux-image-gcp-fips-5.15Upgrade linux-image-gcp-5.15Upgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-6.8.0-86-lowlatencyUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-6.8.0-1041-nvidia-64kUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-aws-64k-5.15Upgrade linux-image-aws-lts-24.04Upgrade linux-image-generic-5.15Upgrade linux-image-awsUpgrade linux-image-raspi-5.15Upgrade linux-image-realtime-5.15Upgrade linux-image-5.15.0-144-generic-lpaeUpgrade linux-image-aws-64kUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.14.0-1004-realtimeUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-5.15.0-144-genericUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-azure-nvidia-lts-24.04Upgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-5.15.0-1041-nvidia-tegra-rtUpgrade linux-image-ibm-6.8Upgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-aws-lts-22.04Upgrade linux-image-aws-6.8Upgrade linux-image-oracle-64kUpgrade linux-image-6.11.0-28-genericUpgrade linux-image-oem-20.04dUpgrade linux-image-5.15.0-1094-azureUpgrade linux-image-6.11.0-1018-azure-fdeUpgrade linux-image-lowlatency-6.11Upgrade linux-image-6.11.0-1016-gcp-64kUpgrade linux-image-generic-64kUpgrade linux-image-azure-fipsUpgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-oem-22.04Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-lowlatency-hwe-24.04Upgrade linux-image-generic-64k-6.8Upgrade linux-image-generic-6.8Upgrade linux-image-6.8.0-1041-raspiUpgrade linux-image-gcp-fipsUpgrade linux-image-6.8.0-1041-azureUpgrade linux-image-azure-lts-24.04Upgrade linux-image-5.15.0-1087-gcpUpgrade linux-image-6.14.0-1008-gcpUpgrade linux-image-5.15.0-1052-xilinx-zynqmpUpgrade linux-image-6.8.0-86-genericUpgrade linux-image-5.15.0-1082-nvidiaUpgrade linux-image-ibmUpgrade linux-image-6.8.0-1042-gcpUpgrade linux-image-6.8.0-1041-nvidiaUpgrade linux-image-6.11.0-1015-awsUpgrade linux-image-lowlatencyUpgrade linux-image-oem-22.04cUpgrade linux-image-oracle-5.15Upgrade linux-image-5.15.0-1041-nvidia-tegraUpgrade linux-image-6.8.0-1041-nvidia-lowlatencyUpgrade linux-image-6.11.0-1011-realtimeUpgrade linux-image-5.15.0-144-fipsUpgrade linux-image-raspiUpgrade linux-image-5.15.0-1094-azure-fipsUpgrade linux-image-5.15.0-1085-oracleUpgrade linux-image-nvidia-5.15Upgrade linux-image-aws-64k-6.8Upgrade linux-image-lowlatency-64kUpgrade linux-image-azure-lts-22.04Upgrade linux-image-ibm-classicUpgrade linux-image-kvm-5.15Upgrade linux-image-azure-fde-edgeUpgrade linux-image-raspi-realtimeUpgrade linux-image-6.8.0-2032-raspi-realtimeUpgrade linux-image-6.14.0-1007-aws-64kUpgrade linux-image-6.11.0-1015-lowlatency-64kUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-gke-6.8Upgrade linux-image-oem-20.04bUpgrade linux-image-lowlatency-64k-hwe-24.04Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-fipsUpgrade linux-image-azure-fips-6.8Upgrade linux-image-5.15.0-1083-intel-iotgUpgrade linux-image-oem-24.04bUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-fips-5.15Upgrade linux-image-nvidia-tegraUpgrade linux-image-azure-6.11Upgrade linux-image-6.14.0-1007-raspiUpgrade linux-image-6.11.0-1018-azureUpgrade linux-image-genericUpgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-oem-22.04bUpgrade linux-image-gke-5.15Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-gcpUpgrade linux-image-6.11.0-1017-oracle-64kUpgrade linux-image-intelUpgrade linux-image-gkeop-6.8Upgrade linux-image-gkeopUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.8.0-1041-awsUpgrade linux-image-azureUpgrade linux-image-6.14.0-22-generic-64kUpgrade linux-image-oem-22.04aUpgrade linux-image-oem-20.04cUpgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-azure-nvidia-6.8Upgrade linux-image-5.15.0-1088-aws-64kUpgrade linux-image-6.8.0-86-lowlatency-64kUpgrade linux-image-6.8.0-1025-gkeopUpgrade linux-image-5.15.0-1088-awsUpgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-gke-64kUpgrade linux-image-generic-lpaeUpgrade linux-image-6.8.0-86-generic-64kUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-6.8.0-1038-oracle-64kUpgrade linux-image-generic-64k-5.15Upgrade linux-image-6.11.0-1024-oemUpgrade linux-image-5.15.0-1030-nvidia-tegra-igx-rtUpgrade linux-image-5.15.0-1081-intel-iot-realtimeUpgrade linux-image-6.8.0-1041-nvidia-lowlatency-64kUpgrade linux-image-5.15.0-1088-aws-fipsUpgrade linux-image-5.15.0-144-lowlatency-64kUpgrade linux-image-5.15.0-144-lowlatencyUpgrade linux-image-virtual-6.8Upgrade linux-image-6.14.0-1007-awsUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-6.14.0-1007-oracle-64kUpgrade linux-image-azure-fde-6.11Upgrade linux-image-intel-iotg-5.15Upgrade linux-image-azure-fdeUpgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-nvidiaUpgrade linux-image-virtual-hwe-22.04 | Jun 26, 2025 | Apr 16, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 2, 2025 | Apr 16, 2025 |
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