{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-52839","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-21T15:19:24.253Z","datePublished":"2024-05-21T15:31:39.196Z","dateUpdated":"2025-05-04T07:44:05.060Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:44:05.060Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers: perf: Do not broadcast to other cpus when starting a counter\n\nThis command:\n\n$ perf record -e cycles:k -e instructions:k -c 10000 -m 64M dd if=/dev/zero of=/dev/null count=1000\n\ngives rise to this kernel warning:\n\n[ 444.364395] WARNING: CPU: 0 PID: 104 at kernel/smp.c:775 smp_call_function_many_cond+0x42c/0x436\n[ 444.364515] Modules linked in:\n[ 444.364657] CPU: 0 PID: 104 Comm: perf-exec Not tainted 6.6.0-rc6-00051-g391df82e8ec3-dirty #73\n[ 444.364771] Hardware name: riscv-virtio,qemu (DT)\n[ 444.364868] epc : smp_call_function_many_cond+0x42c/0x436\n[ 444.364917] ra : on_each_cpu_cond_mask+0x20/0x32\n[ 444.364948] epc : ffffffff8009f9e0 ra : ffffffff8009fa5a sp : ff20000000003800\n[ 444.364966] gp : ffffffff81500aa0 tp : ff60000002b83000 t0 : ff200000000038c0\n[ 444.364982] t1 : ffffffff815021f0 t2 : 000000000000001f s0 : ff200000000038b0\n[ 444.364998] s1 : ff60000002c54d98 a0 : ff60000002a73940 a1 : 0000000000000000\n[ 444.365013] a2 : 0000000000000000 a3 : 0000000000000003 a4 : 0000000000000100\n[ 444.365029] a5 : 0000000000010100 a6 : 0000000000f00000 a7 : 0000000000000000\n[ 444.365044] s2 : 0000000000000000 s3 : ffffffffffffffff s4 : ff60000002c54d98\n[ 444.365060] s5 : ffffffff81539610 s6 : ffffffff80c20c48 s7 : 0000000000000000\n[ 444.365075] s8 : 0000000000000000 s9 : 0000000000000001 s10: 0000000000000001\n[ 444.365090] s11: ffffffff80099394 t3 : 0000000000000003 t4 : 00000000eac0c6e6\n[ 444.365104] t5 : 0000000400000000 t6 : ff60000002e010d0\n[ 444.365120] status: 0000000200000100 badaddr: 0000000000000000 cause: 0000000000000003\n[ 444.365226] [] smp_call_function_many_cond+0x42c/0x436\n[ 444.365295] [] on_each_cpu_cond_mask+0x20/0x32\n[ 444.365311] [] pmu_sbi_ctr_start+0x7a/0xaa\n[ 444.365327] [] riscv_pmu_start+0x48/0x66\n[ 444.365339] [] perf_adjust_freq_unthr_context+0x196/0x1ac\n[ 444.365356] [] perf_event_task_tick+0x78/0x8c\n[ 444.365368] [] scheduler_tick+0xe6/0x25e\n[ 444.365383] [] update_process_times+0x80/0x96\n[ 444.365398] [] tick_sched_handle+0x26/0x52\n[ 444.365410] [] tick_sched_timer+0x50/0x98\n[ 444.365422] [] __hrtimer_run_queues+0x126/0x18a\n[ 444.365433] [] hrtimer_interrupt+0xce/0x1da\n[ 444.365444] [] riscv_timer_interrupt+0x30/0x3a\n[ 444.365457] [] handle_percpu_devid_irq+0x80/0x114\n[ 444.365470] [] generic_handle_domain_irq+0x1c/0x2a\n[ 444.365483] [] riscv_intc_irq+0x2e/0x46\n[ 444.365497] [] handle_riscv_irq+0x4a/0x74\n[ 444.365521] [] do_irq+0x7c/0x7e\n[ 444.365796] ---[ end trace 0000000000000000 ]---\n\nThat's because the fix in commit 3fec323339a4 (\"drivers: perf: Fix panic\nin riscv SBI mmap support\") was wrong since there is no need to broadcast\nto other cpus when starting a counter, that's only needed in mmap when\nthe counters could have already been started on other cpus, so simply\nremove this broadcast."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/perf/riscv_pmu_sbi.c"],"versions":[{"version":"3fec323339a4a9801a54e8b282eb571965b67b23","lessThan":"85be1a73fd298ed3fd060dfce97caef5f9928c57","status":"affected","versionType":"git"},{"version":"3fec323339a4a9801a54e8b282eb571965b67b23","lessThan":"61e3d993c8bd3e80f8f1363ed5e04f88ab531b72","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/perf/riscv_pmu_sbi.c"],"versions":[{"version":"6.6","status":"affected"},{"version":"0","lessThan":"6.6","status":"unaffected","versionType":"semver"},{"version":"6.6.2","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.7","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.6.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.7"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/85be1a73fd298ed3fd060dfce97caef5f9928c57"},{"url":"https://git.kernel.org/stable/c/61e3d993c8bd3e80f8f1363ed5e04f88ab531b72"}],"title":"drivers: perf: Do not broadcast to other cpus when starting a counter","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T23:11:35.924Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/85be1a73fd298ed3fd060dfce97caef5f9928c57","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/61e3d993c8bd3e80f8f1363ed5e04f88ab531b72","tags":["x_transferred"]}]},{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2023-52839","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-09-10T15:36:34.430107Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-09-11T17:32:54.398Z"}}]}}