{"cve":"CVE-2026-43471","nvd":{"published":"2026-05-08T15:17:00.193","modified":"2026-06-17T10:49:39.930","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: core: Fix possible NULL pointer dereference in ufshcd_add_command_trace()\n\nThe kernel log indicates a crash in ufshcd_add_command_trace, due to a NULL\npointer dereference when accessing hwq->id.  This can happen if\nufshcd_mcq_req_to_hwq() returns NULL.\n\nThis patch adds a NULL check for hwq before accessing its id field to\nprevent a kernel crash.\n\nKernel log excerpt:\n[<ffffffd5d192dc4c>] notify_die+0x4c/0x8c\n[<ffffffd5d1814e58>] __die+0x60/0xb0\n[<ffffffd5d1814d64>] die+0x4c/0xe0\n[<ffffffd5d181575c>] die_kernel_fault+0x74/0x88\n[<ffffffd5d1864db4>] __do_kernel_fault+0x314/0x318\n[<ffffffd5d2a3cdf8>] do_page_fault+0xa4/0x5f8\n[<ffffffd5d2a3cd34>] do_translation_fault+0x34/0x54\n[<ffffffd5d1864524>] do_mem_abort+0x50/0xa8\n[<ffffffd5d2a297dc>] el1_abort+0x3c/0x64\n[<ffffffd5d2a29718>] el1h_64_sync_handler+0x44/0xcc\n[<ffffffd5d181133c>] el1h_64_sync+0x80/0x88\n[<ffffffd5d255c1dc>] ufshcd_add_command_trace+0x23c/0x320\n[<ffffffd5d255bad8>] ufshcd_compl_one_cqe+0xa4/0x404\n[<ffffffd5d2572968>] ufshcd_mcq_poll_cqe_lock+0xac/0x104\n[<ffffffd5d11c7460>] ufs_mtk_mcq_intr+0x54/0x74 [ufs_mediatek_mod]\n[<ffffffd5d19ab92c>] __handle_irq_event_percpu+0xc8/0x348\n[<ffffffd5d19abca8>] handle_irq_event+0x3c/0xa8\n[<ffffffd5d19b1f0c>] handle_fasteoi_irq+0xf8/0x294\n[<ffffffd5d19aa778>] generic_handle_domain_irq+0x54/0x80\n[<ffffffd5d18102bc>] gic_handle_irq+0x1d4/0x330\n[<ffffffd5d1838210>] call_on_irq_stack+0x44/0x68\n[<ffffffd5d183af30>] do_interrupt_handler+0x78/0xd8\n[<ffffffd5d2a29c00>] el1_interrupt+0x48/0xa8\n[<ffffffd5d2a29ba8>] el1h_64_irq_handler+0x14/0x24\n[<ffffffd5d18113c4>] el1h_64_irq+0x80/0x88\n[<ffffffd5d2527fb4>] arch_local_irq_enable+0x4/0x1c\n[<ffffffd5d25282e4>] cpuidle_enter+0x34/0x54\n[<ffffffd5d195a678>] do_idle+0x1dc/0x2f8\n[<ffffffd5d195a7c4>] cpu_startup_entry+0x30/0x3c\n[<ffffffd5d18155c4>] secondary_start_kernel+0x134/0x1ac\n[<ffffffd5d18640bc>] __secondary_switched+0xc4/0xcc","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/0614f5618c24fbc3d555efade22887b102ad7ad6","https://git.kernel.org/stable/c/30df81f2228d65bddf492db3929d9fcaffd38fc5","https://git.kernel.org/stable/c/93b9e7ee9e93629db80bbc9dab8a874215b89ccf","https://git.kernel.org/stable/c/be730f9ee92ae08f2bc4b336967bcfd8183c06fe","https://git.kernel.org/stable/c/f4f590c6c9df7453bbda2ef9170b1b09e42a124c"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:33:55.586217763+00:00"},"epss":{"cve":"CVE-2026-43471","score":0.00114,"percentile":0.01439,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}