{"id":"CVE-2025-22020","summary":"memstick: rtsx_usb_ms: Fix slab-use-after-free in rtsx_usb_ms_drv_remove","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmemstick: rtsx_usb_ms: Fix slab-use-after-free in rtsx_usb_ms_drv_remove\n\nThis fixes the following crash:\n\n==================================================================\nBUG: KASAN: slab-use-after-free in rtsx_usb_ms_poll_card+0x159/0x200 [rtsx_usb_ms]\nRead of size 8 at addr ffff888136335380 by task kworker/6:0/140241\n\nCPU: 6 UID: 0 PID: 140241 Comm: kworker/6:0 Kdump: loaded Tainted: G            E      6.14.0-rc6+ #1\nTainted: [E]=UNSIGNED_MODULE\nHardware name: LENOVO 30FNA1V7CW/1057, BIOS S0EKT54A 07/01/2024\nWorkqueue: events rtsx_usb_ms_poll_card [rtsx_usb_ms]\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x51/0x70\n print_address_description.constprop.0+0x27/0x320\n ? rtsx_usb_ms_poll_card+0x159/0x200 [rtsx_usb_ms]\n print_report+0x3e/0x70\n kasan_report+0xab/0xe0\n ? rtsx_usb_ms_poll_card+0x159/0x200 [rtsx_usb_ms]\n rtsx_usb_ms_poll_card+0x159/0x200 [rtsx_usb_ms]\n ? __pfx_rtsx_usb_ms_poll_card+0x10/0x10 [rtsx_usb_ms]\n ? __pfx___schedule+0x10/0x10\n ? kick_pool+0x3b/0x270\n process_one_work+0x357/0x660\n worker_thread+0x390/0x4c0\n ? __pfx_worker_thread+0x10/0x10\n kthread+0x190/0x1d0\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x2d/0x50\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30\n \u003c/TASK\u003e\n\nAllocated by task 161446:\n kasan_save_stack+0x20/0x40\n kasan_save_track+0x10/0x30\n __kasan_kmalloc+0x7b/0x90\n __kmalloc_noprof+0x1a7/0x470\n memstick_alloc_host+0x1f/0xe0 [memstick]\n rtsx_usb_ms_drv_probe+0x47/0x320 [rtsx_usb_ms]\n platform_probe+0x60/0xe0\n call_driver_probe+0x35/0x120\n really_probe+0x123/0x410\n __driver_probe_device+0xc7/0x1e0\n driver_probe_device+0x49/0xf0\n __device_attach_driver+0xc6/0x160\n bus_for_each_drv+0xe4/0x160\n __device_attach+0x13a/0x2b0\n bus_probe_device+0xbd/0xd0\n device_add+0x4a5/0x760\n platform_device_add+0x189/0x370\n mfd_add_device+0x587/0x5e0\n mfd_add_devices+0xb1/0x130\n rtsx_usb_probe+0x28e/0x2e0 [rtsx_usb]\n usb_probe_interface+0x15c/0x460\n call_driver_probe+0x35/0x120\n really_probe+0x123/0x410\n __driver_probe_device+0xc7/0x1e0\n driver_probe_device+0x49/0xf0\n __device_attach_driver+0xc6/0x160\n bus_for_each_drv+0xe4/0x160\n __device_attach+0x13a/0x2b0\n rebind_marked_interfaces.isra.0+0xcc/0x110\n usb_reset_device+0x352/0x410\n usbdev_do_ioctl+0xe5c/0x1860\n usbdev_ioctl+0xa/0x20\n __x64_sys_ioctl+0xc5/0xf0\n do_syscall_64+0x59/0x170\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nFreed by task 161506:\n kasan_save_stack+0x20/0x40\n kasan_save_track+0x10/0x30\n kasan_save_free_info+0x36/0x60\n __kasan_slab_free+0x34/0x50\n kfree+0x1fd/0x3b0\n device_release+0x56/0xf0\n kobject_cleanup+0x73/0x1c0\n rtsx_usb_ms_drv_remove+0x13d/0x220 [rtsx_usb_ms]\n platform_remove+0x2f/0x50\n device_release_driver_internal+0x24b/0x2e0\n bus_remove_device+0x124/0x1d0\n device_del+0x239/0x530\n platform_device_del.part.0+0x19/0xe0\n platform_device_unregister+0x1c/0x40\n mfd_remove_devices_fn+0x167/0x170\n device_for_each_child_reverse+0xc9/0x130\n mfd_remove_devices+0x6e/0xa0\n rtsx_usb_disconnect+0x2e/0xd0 [rtsx_usb]\n usb_unbind_interface+0xf3/0x3f0\n device_release_driver_internal+0x24b/0x2e0\n proc_disconnect_claim+0x13d/0x220\n usbdev_do_ioctl+0xb5e/0x1860\n usbdev_ioctl+0xa/0x20\n __x64_sys_ioctl+0xc5/0xf0\n do_syscall_64+0x59/0x170\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nLast potentially related work creation:\n kasan_save_stack+0x20/0x40\n kasan_record_aux_stack+0x85/0x90\n insert_work+0x29/0x100\n __queue_work+0x34a/0x540\n call_timer_fn+0x2a/0x160\n expire_timers+0x5f/0x1f0\n __run_timer_base.part.0+0x1b6/0x1e0\n run_timer_softirq+0x8b/0xe0\n handle_softirqs+0xf9/0x360\n __irq_exit_rcu+0x114/0x130\n sysvec_apic_timer_interrupt+0x72/0x90\n asm_sysvec_apic_timer_interrupt+0x16/0x20\n\nSecond to last potentially related work creation:\n kasan_save_stack+0x20/0x40\n kasan_record_aux_stack+0x85/0x90\n insert_work+0x29/0x100\n __queue_work+0x34a/0x540\n call_timer_fn+0x2a/0x160\n expire_timers+0x5f/0x1f0\n __run_timer_base.part.0+0x1b6/0x1e0\n run_timer_softirq+0x8b/0xe0\n handle_softirqs+0xf9/0x\n---truncated---","modified":"2026-04-16T04:37:20.516149344Z","published":"2025-04-16T10:20:37.045Z","related":["ALSA-2025:12662","ALSA-2025:12746","ALSA-2025:12752","ALSA-2025:12753","SUSE-SU-2025:01614-1","SUSE-SU-2025:01620-1","SUSE-SU-2025:01627-1","SUSE-SU-2025:01633-1","SUSE-SU-2025:01640-1","SUSE-SU-2025:01707-1","SUSE-SU-2025:01919-1","SUSE-SU-2025:01951-1","SUSE-SU-2025:01964-1","SUSE-SU-2025:01967-1","SUSE-SU-2025:1573-1","SUSE-SU-2025:1574-1","SUSE-SU-2025:20343-1","SUSE-SU-2025:20344-1","SUSE-SU-2025:20354-1","SUSE-SU-2025:20355-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/22xxx/CVE-2025-22020.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0067cb7d7e7c277e91a0887a3c24e71462379469"},{"type":"WEB","url":"https://git.kernel.org/stable/c/31f0eaed6914333f42501fc7e0f6830879f5ef2d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4676741a3464b300b486e70585c3c9b692be1632"},{"type":"WEB","url":"https://git.kernel.org/stable/c/52d942a5302eefb3b7a3bfee310a5a33feeedc21"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6186fb2cd36317277a8423687982140a7f3f7841"},{"type":"WEB","url":"https://git.kernel.org/stable/c/75123adf204f997e11bbddee48408c284f51c050"},{"type":"WEB","url":"https://git.kernel.org/stable/c/914c5e5bfceb9878f3056eaf4d1c88f2cbe0a185"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9dfaf4d723c62bda8d9d1340e2e78acf0c190439"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b094e8e3988e02e8cef7a756c8d2cea9c12509ab"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/22xxx/CVE-2025-22020.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-22020"},{"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":"6827ca573c03385439fdfc8b512d556dc7c54fc9"},{"fixed":"914c5e5bfceb9878f3056eaf4d1c88f2cbe0a185"},{"fixed":"9dfaf4d723c62bda8d9d1340e2e78acf0c190439"},{"fixed":"31f0eaed6914333f42501fc7e0f6830879f5ef2d"},{"fixed":"52d942a5302eefb3b7a3bfee310a5a33feeedc21"},{"fixed":"6186fb2cd36317277a8423687982140a7f3f7841"},{"fixed":"b094e8e3988e02e8cef7a756c8d2cea9c12509ab"},{"fixed":"0067cb7d7e7c277e91a0887a3c24e71462379469"},{"fixed":"75123adf204f997e11bbddee48408c284f51c050"},{"fixed":"4676741a3464b300b486e70585c3c9b692be1632"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-22020.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}