{"id":"CVE-2026-43471","summary":"scsi: ufs: core: Fix possible NULL pointer dereference in ufshcd_add_command_trace()","details":"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-\u003eid.  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[\u003cffffffd5d192dc4c\u003e] notify_die+0x4c/0x8c\n[\u003cffffffd5d1814e58\u003e] __die+0x60/0xb0\n[\u003cffffffd5d1814d64\u003e] die+0x4c/0xe0\n[\u003cffffffd5d181575c\u003e] die_kernel_fault+0x74/0x88\n[\u003cffffffd5d1864db4\u003e] __do_kernel_fault+0x314/0x318\n[\u003cffffffd5d2a3cdf8\u003e] do_page_fault+0xa4/0x5f8\n[\u003cffffffd5d2a3cd34\u003e] do_translation_fault+0x34/0x54\n[\u003cffffffd5d1864524\u003e] do_mem_abort+0x50/0xa8\n[\u003cffffffd5d2a297dc\u003e] el1_abort+0x3c/0x64\n[\u003cffffffd5d2a29718\u003e] el1h_64_sync_handler+0x44/0xcc\n[\u003cffffffd5d181133c\u003e] el1h_64_sync+0x80/0x88\n[\u003cffffffd5d255c1dc\u003e] ufshcd_add_command_trace+0x23c/0x320\n[\u003cffffffd5d255bad8\u003e] ufshcd_compl_one_cqe+0xa4/0x404\n[\u003cffffffd5d2572968\u003e] ufshcd_mcq_poll_cqe_lock+0xac/0x104\n[\u003cffffffd5d11c7460\u003e] ufs_mtk_mcq_intr+0x54/0x74 [ufs_mediatek_mod]\n[\u003cffffffd5d19ab92c\u003e] __handle_irq_event_percpu+0xc8/0x348\n[\u003cffffffd5d19abca8\u003e] handle_irq_event+0x3c/0xa8\n[\u003cffffffd5d19b1f0c\u003e] handle_fasteoi_irq+0xf8/0x294\n[\u003cffffffd5d19aa778\u003e] generic_handle_domain_irq+0x54/0x80\n[\u003cffffffd5d18102bc\u003e] gic_handle_irq+0x1d4/0x330\n[\u003cffffffd5d1838210\u003e] call_on_irq_stack+0x44/0x68\n[\u003cffffffd5d183af30\u003e] do_interrupt_handler+0x78/0xd8\n[\u003cffffffd5d2a29c00\u003e] el1_interrupt+0x48/0xa8\n[\u003cffffffd5d2a29ba8\u003e] el1h_64_irq_handler+0x14/0x24\n[\u003cffffffd5d18113c4\u003e] el1h_64_irq+0x80/0x88\n[\u003cffffffd5d2527fb4\u003e] arch_local_irq_enable+0x4/0x1c\n[\u003cffffffd5d25282e4\u003e] cpuidle_enter+0x34/0x54\n[\u003cffffffd5d195a678\u003e] do_idle+0x1dc/0x2f8\n[\u003cffffffd5d195a7c4\u003e] cpu_startup_entry+0x30/0x3c\n[\u003cffffffd5d18155c4\u003e] secondary_start_kernel+0x134/0x1ac\n[\u003cffffffd5d18640bc\u003e] __secondary_switched+0xc4/0xcc","modified":"2026-11-13T04:05:59.545265680Z","published":"2026-05-08T14:22:30.909Z","related":["SUSE-SU-2026:22742-1","SUSE-SU-2026:22769-1","SUSE-SU-2026:22812-1","SUSE-SU-2026:22835-1","openSUSE-SU-2026:21388-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43471.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0614f5618c24fbc3d555efade22887b102ad7ad6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/30df81f2228d65bddf492db3929d9fcaffd38fc5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/93b9e7ee9e93629db80bbc9dab8a874215b89ccf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/be730f9ee92ae08f2bc4b336967bcfd8183c06fe"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f4f590c6c9df7453bbda2ef9170b1b09e42a124c"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43471.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43471"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"bed0896008334eeee4b4bfd7150491ca098cbf72"},{"fixed":"0614f5618c24fbc3d555efade22887b102ad7ad6"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"9307a998cb9846a2557fdca286997430bee36a2a"},{"fixed":"be730f9ee92ae08f2bc4b336967bcfd8183c06fe"},{"fixed":"f4f590c6c9df7453bbda2ef9170b1b09e42a124c"},{"fixed":"93b9e7ee9e93629db80bbc9dab8a874215b89ccf"},{"fixed":"30df81f2228d65bddf492db3929d9fcaffd38fc5"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"11d81233f4ebe6907b12c79ad7d8787aa4db0633"}]}],"versions":["v6.6.129","v6.6.128","v6.6.127","v6.6.126","v6.6.125","v6.6.124","v6.6.123","v6.6.122","v6.6.121","v6.6.120","v6.6.119","v6.6.118","v6.6.117","v6.6.116","v6.6.115","v6.6.114","v6.6.113","v6.6.112","v6.6.111","v6.6.110","v6.6.109","v6.6.108","v6.6.107","v6.6.106","v6.6.105","v6.6.104","v6.6.103","v6.6.102","v6.6.101","v6.6.100","v6.6.99","v6.6.98","v6.6.97","v6.6.96","v6.6.95","v6.6.94","v6.6.93","v6.6.92","v6.6.91","v6.6.90","v6.6.89","v6.6.88","v6.6.87","v6.6.86","v6.6.85","v6.6.84","v6.6.83","v6.6.82","v6.6.81","v6.6.80","v6.6.79","v6.6.78","v6.6.77","v6.6.76","v6.6.75","v6.6.74","v6.6.73","v6.6.72","v6.6.71","v6.6.70","v6.6.69","v6.6.68","v6.6.67","v6.6.66","v6.6.65","v6.6.64","v6.6.63","v6.6.62","v6.6.61","v6.6.60","v6.6.59","v6.6.58","v6.6.57","v6.6.56","v6.6.55","v6.6.54","v6.6.53","v6.6.52","v6.6.51","v6.6.50","v6.6.49","v6.6.48","v6.6.47","v6.6.46","v6.6.45","v6.6.44","v6.6.43","v6.6.42","v6.6.41","v6.9.12","v6.9.11","v6.9.10"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43471.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.6.41"},{"fixed":"6.6.130"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.9.10"},{"fixed":"6.10"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.10.0"},{"fixed":"6.12.78"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.19"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43471.json"}}],"schema_version":"1.9.2"}