In the Linux kernel, the following vulnerability has been resolved:
binfmt_misc: fix shift-out-of-bounds in check_special_flags
UBSAN reported a shift-out-of-bounds warning:
left shift of 1 by 31 places cannot be represented in type 'int' Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8d/0xcf lib/dump_stack.c:106 ubsan_epilogue+0xa/0x44 lib/ubsan.c:151 __ubsan_handle_shift_out_of_bounds+0x1e7/0x208 lib/ubsan.c:322 check_special_flags fs/binfmt_misc.c:241 [inline] create_entry fs/binfmt_misc.c:456 [inline] bm_register_write+0x9d3/0xa20 fs/binfmt_misc.c:654 vfs_write+0x11e/0x580 fs/read_write.c:582 ksys_write+0xcf/0x120 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x34/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x4194e1
Since the type of Node's flags is unsigned long, we should define these macros with same type too.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade bpftoolUpgrade kernel-livepatch-5.10.165-143.735Upgrade kernelUpgrade kernel-toolsUpgrade kernel-tools-develUpgrade perfUpgrade kernel-debuginfo-common-x86_64Upgrade python-perfUpgrade kernel-headersUpgrade perf-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-4.14.304-226.531Upgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfoUpgrade python-perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-livepatch-5.15.86-53.137 | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux | Oct 6, 2025 | Oct 6, 2025 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade python3-perfUpgrade kernelUpgrade kernel-tools-libs | Jan 15, 2026 | Jan 13, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernelUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade bpftoolUpgrade kernel-abi-stablelistsUpgrade python3-perf | Dec 12, 2025 | Dec 11, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Oct 4, 2025 |
| Ubuntu | — | Upgrade linux-lowlatency-hwe-5.15Upgrade linux-azureUpgrade linux-aws-5.4Upgrade linux-gcp-5.15Upgrade linux-oracle-5.4Upgrade linux-realtimeUpgrade linux-nvidia-tegra-5.15Upgrade linux-awsUpgrade linux-azure-fdeUpgrade linux-aws-5.15Upgrade linux-raspiUpgrade linux-lowlatencyUpgrade linux-hwe-5.15Upgrade linux-aws-hweUpgrade linux-riscv-5.15Upgrade linux-fipsUpgrade linux-gkeUpgrade linux-raspi-5.4Upgrade linux-bluefieldUpgrade linux-oracle-5.15Upgrade linux-gcpUpgrade linux-intel-iotg-5.15Upgrade linux-hweUpgrade linux-gcp-4.15Upgrade linux-azure-4.15Upgrade linux-azure-5.15Upgrade linux-xilinx-zynqmpUpgrade linux-ibm-5.4Upgrade linux-kvmUpgrade linuxUpgrade linux-iotUpgrade linux-nvidiaUpgrade linux-ibmUpgrade linux-intel-iot-realtimeUpgrade linux-gcp-5.4Upgrade linux-hwe-5.4Upgrade linux-azure-5.4Upgrade linux-azure-fipsUpgrade linux-aws-fipsUpgrade linux-intel-iotgUpgrade linux-oracleUpgrade linux-gcp-fipsUpgrade linux-azure-fde-5.15Upgrade linux-gkeop | Oct 10, 2025 | Oct 4, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 15, 2025 | Oct 4, 2025 |
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