# CVE-2024-50138: linux: In the Linux kernel, the following vulnerability has been resolved: bpf: Use raw_spinlock_t in ringbuf The function... CVE-2024-50138 is fixed in 47 products on 1 platform, first by DEBIAN-CVE-2024-50138, released November 5, 2024. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2024-50138 - Priority: Routine - CVSS: 5.5 (medium) - EPSS: 0.0022 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Nov 5, 2024 ## Description In the Linux kernel, the following vulnerability has been resolved: bpf: Use raw_spinlock_t in ringbuf The function __bpf_ringbuf_reserve is invoked from a tracepoint, which disables preemption. Using spinlock_t in this context can lead to a "sleep in atomic" warning in the RT variant. This issue is illustrated in the example below: BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 556208, name: test_progs preempt_count: 1, expected: 0 RCU nest depth: 1, expected: 1 INFO: lockdep is turned off. Preemption disabled at: [] migrate_enable+0xc0/0x39c CPU: 7 PID: 556208 Comm: test_progs Tainted: G Hardware name: Qualcomm SA8775P Ride (DT) Call trace: dump_backtrace+0xac/0x130 show_stack+0x1c/0x30 dump_stack_lvl+0xac/0xe8 dump_stack+0x18/0x30 __might_resched+0x3bc/0x4fc rt_spin_lock+0x8c/0x1a4 __bpf_ringbuf_reserve+0xc4/0x254 bpf_ringbuf_reserve_dynptr+0x5c/0xdc bpf_prog_ac3d15160d62622a_test_read_write+0x104/0x238 trace_call_bpf+0x238/0x774 perf_call_bpf_enter.isra.0+0x104/0x194 perf_syscall_enter+0x2f8/0x510 trace_sys_enter+0x39c/0x564 syscall_trace_enter+0x220/0x3c0 do_el0_svc+0x138/0x1dc el0_svc+0x54/0x130 el0t_64_sync_handler+0x134/0x150 el0t_64_sync+0x17c/0x180 Switch the spinlock to raw_spinlock_t to avoid this error. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | bpftool amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | bpftool-debuginfo amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | dtb-aarch64 opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | kernel-64kb opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-64kb sles 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-azure opensuse-leap 15.6 | 6.4.0-150600.8.20.1 | [SUSE-SU-2024:4316-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4316-1.md) | Dec 13, 2024 | | Linux | kernel-azure sles 15.6 | 6.4.0-150600.8.20.1 | [SUSE-SU-2024:4316-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4316-1.md) | Dec 13, 2024 | | Linux | kernel-coco sles 15.6 | 6.4.0-15061.9.coco15sp6.1 | [SUSE-SU-2024:4387-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4387-1.md) | Dec 19, 2024 | | Linux | kernel-coco_debug sles 15.6 | 6.4.0-15061.9.coco15sp6.1 | [SUSE-SU-2024:4387-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4387-1.md) | Dec 19, 2024 | | Linux | kernel-debug opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-debuginfo amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | kernel-default opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-default sles 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-default-base opensuse-leap 15.6 | 6.4.0-150600.23.30.1.150600.12.12.6 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-default-base sles 15.6 | 6.4.0-150600.23.30.1.150600.12.12.6 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-devel amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | kernel-docs opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-docs sles 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-headers amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | kernel-kvmsmall opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-libbpf amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | kernel-libbpf-devel amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | kernel-libbpf-static amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | kernel-livepatch-6.1.115-126.197 amzn 2023 | 1.0-0.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | kernel-livepatch-SLE15-SP6-RT_Update_6 sles 15.6 | 1-150600.1.3.1 | [SUSE-SU-2024:4314-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4314-1.md) | Dec 13, 2024 | | Linux | kernel-livepatch-SLE15-SP6_Update_6 sles 15.6 | 1-150600.13.3.5 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-modules-extra amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | kernel-modules-extra-common amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | kernel-obs-build opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-obs-build sles 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-obs-qa opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-rt opensuse-leap 15.6 | 6.4.0-150600.10.20.1 | [SUSE-SU-2024:4314-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4314-1.md) | Dec 13, 2024 | | Linux | kernel-rt_debug opensuse-leap 15.6 | 6.4.0-150600.10.20.1 | [SUSE-SU-2024:4314-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4314-1.md) | Dec 13, 2024 | | Linux | kernel-source opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-source sles 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-source-azure opensuse-leap 15.6 | 6.4.0-150600.8.20.1 | [SUSE-SU-2024:4316-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4316-1.md) | Dec 13, 2024 | | Linux | kernel-source-azure sles 15.6 | 6.4.0-150600.8.20.1 | [SUSE-SU-2024:4316-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4316-1.md) | Dec 13, 2024 | | Linux | kernel-source-coco sles 15.6 | 6.4.0-15061.9.coco15sp6.1 | [SUSE-SU-2024:4387-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4387-1.md) | Dec 19, 2024 | | Linux | kernel-source-rt opensuse-leap 15.6 | 6.4.0-150600.10.20.1 | [SUSE-SU-2024:4314-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4314-1.md) | Dec 13, 2024 | | Linux | kernel-syms opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-syms sles 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-syms-azure opensuse-leap 15.6 | 6.4.0-150600.8.20.1 | [SUSE-SU-2024:4316-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4316-1.md) | Dec 13, 2024 | | Linux | kernel-syms-azure sles 15.6 | 6.4.0-150600.8.20.1 | [SUSE-SU-2024:4316-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4316-1.md) | Dec 13, 2024 | | Linux | kernel-syms-coco sles 15.6 | 6.4.0-15061.9.coco15sp6.1 | [SUSE-SU-2024:4387-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4387-1.md) | Dec 19, 2024 | | Linux | kernel-syms-rt opensuse-leap 15.6 | 6.4.0-150600.10.20.1 | [SUSE-SU-2024:4314-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4314-1.md) | Dec 13, 2024 | | Linux | kernel-tools amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | kernel-tools-debuginfo amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | kernel-tools-devel amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | kernel-zfcpdump opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-zfcpdump sles 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | linux Debian 12.15 (bookworm) | 6.1.115-1 | [DEBIAN-CVE-2024-50138](https://patchblox.com/security/data/fix/linux/debian-cve-2024-50138.md) | Nov 5, 2024 | | Linux | linux Debian 13.5 (trixie) | 6.11.6-1 | [DEBIAN-CVE-2024-50138](https://patchblox.com/security/data/fix/linux/debian-cve-2024-50138.md) | Nov 5, 2024 | | Linux | linux Debian 14 | 6.11.6-1 | [DEBIAN-CVE-2024-50138](https://patchblox.com/security/data/fix/linux/debian-cve-2024-50138.md) | Nov 5, 2024 | | Linux | perf amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | perf-debuginfo amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | python3-perf amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | | Linux | python3-perf-debuginfo amzn 2023 | 6.1.115-126.197.amzn2023 | [ALAS2023-2025-794](https://patchblox.com/security/data/fix/linux/alas2023-2025-794.md) | Jan 6, 2025 | --- Data as of 2026-11-08T19:12:23Z UTC. 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