{"id":"CVE-2026-93194","summary":"drm/rockchip: dw_dp: Release core resources","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/rockchip: dw_dp: Release core resources\n\nCore resources such as the DisplayPort AUX channel get initialized and\nregistered during dw_dp_bind(), but are never unregistered, which may\nlead to memory leaks and/or use-after-free:\n\n[  224.661371] BUG: KASAN: slab-use-after-free in device_is_dependent+0xe0/0x2b0\n[  224.662015] Read of size 8 at addr ffff00011aee8550 by task modprobe/658\n[  224.662612]\n[  224.662752] CPU: 7 UID: 0 PID: 658 Comm: modprobe Not tainted 7.0.0-rc2-next-20260305 #14 PREEMPT\n[  224.662759] Hardware name: Radxa ROCK 5B (DT)\n[  224.662762] Call trace:\n[  224.662764]  show_stack+0x20/0x38 (C)\n[  224.662772]  dump_stack_lvl+0x6c/0x98\n[  224.662777]  print_report+0x160/0x4b8\n[  224.662783]  kasan_report+0xb4/0xe0\n[  224.662790]  __asan_report_load8_noabort+0x20/0x30\n[  224.662796]  device_is_dependent+0xe0/0x2b0\n[  224.662802]  device_is_dependent+0x108/0x2b0\n[  224.662808]  device_link_add+0x1f8/0x10b0\n[  224.662813]  devm_of_phy_get_by_index+0x120/0x200\n[  224.662819]  dw_dp_bind+0x34c/0xb10 [dw_dp]\n[  224.662830]  dw_dp_rockchip_bind+0x194/0x250 [rockchipdrm]\n[  224.662864]  component_bind_all+0x3a8/0x720\n[  224.662869]  rockchip_drm_bind+0x120/0x390 [rockchipdrm]\n[  224.662899]  try_to_bring_up_aggregate_device+0x76c/0x838\n[  224.662904]  component_master_add_with_match+0x1f4/0x230\n[  224.662909]  rockchip_drm_platform_probe+0x420/0x538 [rockchipdrm]\n[  224.662939]  platform_probe+0xe8/0x168\n[  224.662945]  really_probe+0x340/0x828\n[  224.662950]  __driver_probe_device+0x2e0/0x350\n[  224.662954]  driver_probe_device+0x80/0x140\n[  224.662959]  __driver_attach+0x398/0x460\n[  224.662964]  bus_for_each_dev+0xe0/0x198\n[  224.662968]  driver_attach+0x50/0x68\n[  224.662972]  bus_add_driver+0x2a0/0x4c0\n[  224.662977]  driver_register+0x294/0x360\n[  224.662982]  __platform_driver_register+0x7c/0x98\n[  224.662987]  rockchip_drm_init+0xc4/0xff8 [rockchipdrm]\n\nSince a previous commit exported dw_dp_unbind() function in DW DP core\nlibrary to take care of the necessary cleanup, use this in the\ncomponent's unbind() callback, as well as in its bind() error path.","modified":"2026-09-19T03:47:28.288831037Z","published":"2026-09-17T16:12:17.802Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93194.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/11f07929f454ecc2c5d0da3a4727fd205be43e49"},{"type":"WEB","url":"https://git.kernel.org/stable/c/362e005b816ee8052a195b98d845966689b398a1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cc6d7aca2f37a1525a94ef97eb3ce361732c876c"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93194.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93194"},{"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":"d68ba7bac9555d05e2f5b310c898b2a5c7eff174"},{"fixed":"362e005b816ee8052a195b98d845966689b398a1"},{"fixed":"11f07929f454ecc2c5d0da3a4727fd205be43e49"},{"fixed":"cc6d7aca2f37a1525a94ef97eb3ce361732c876c"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93194.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.18.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93194.json"}}],"schema_version":"1.9.0"}