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List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1524:b0:3cf:b3ab:584d with SMTP id e9e14a558f8ab-3d04f485c3amr32262235ab.13.1738777520709; Wed, 05 Feb 2025 09:45:20 -0800 (PST) Date: Wed, 05 Feb 2025 09:45:20 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67a3a3b0.050a0220.19061f.05e8.GAE@google.com> Subject: [syzbot] [usb?] KASAN: slab-use-after-free Read in usbhid_raw_request From: syzbot To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 72deda0abee6 Merge tag 'soundwire-6.14-rc1' of git://git.k.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing console output: https://syzkaller.appspot.com/x/log.txt?x=1300fddf980000 kernel config: https://syzkaller.appspot.com/x/.config?x=8c011d19ff7f1a12 dashboard link: https://syzkaller.appspot.com/bug?extid=90ac8355c8ac84b1b464 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13b555f8580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1666cb24580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/82546410e501/disk-72deda0a.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/24a56810b3df/vmlinux-72deda0a.xz kernel image: https://storage.googleapis.com/syzbot-assets/9bb4e9366966/bzImage-72deda0a.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+90ac8355c8ac84b1b464@syzkaller.appspotmail.com ================================================================== BUG: KASAN: slab-use-after-free in usb_control_msg+0x434/0x4b0 drivers/usb/core/message.c:157 Read of size 4 at addr ffff88812223c67c by task kworker/0:3/2954 CPU: 0 UID: 0 PID: 2954 Comm: kworker/0:3 Not tainted 6.13.0-syzkaller-09485-g72deda0abee6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: events corsair_void_status_work_handler Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xc3/0x620 mm/kasan/report.c:489 kasan_report+0xd9/0x110 mm/kasan/report.c:602 usb_control_msg+0x434/0x4b0 drivers/usb/core/message.c:157 usbhid_set_raw_report drivers/hid/usbhid/hid-core.c:927 [inline] usbhid_raw_request+0x233/0x700 drivers/hid/usbhid/hid-core.c:1295 __hid_hw_raw_request drivers/hid/hid-core.c:2457 [inline] hid_hw_raw_request+0x10a/0x150 drivers/hid/hid-core.c:2479 corsair_void_request_status+0xc3/0x130 drivers/hid/hid-corsair-void.c:493 corsair_void_status_work_handler+0x3f/0xb0 drivers/hid/hid-corsair-void.c:512 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3317 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3398 kthread+0x3af/0x750 kernel/kthread.c:464 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Allocated by task 2954: kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x8f/0xa0 mm/kasan/common.c:394 kmalloc_noprof include/linux/slab.h:901 [inline] kzalloc_noprof include/linux/slab.h:1037 [inline] usb_alloc_dev+0x55/0xdc0 drivers/usb/core/usb.c:650 hub_port_connect drivers/usb/core/hub.c:5426 [inline] hub_port_connect_change drivers/usb/core/hub.c:5663 [inline] port_event drivers/usb/core/hub.c:5823 [inline] hub_event+0x28f9/0x4f40 drivers/usb/core/hub.c:5905 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3317 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3398 kthread+0x3af/0x750 kernel/kthread.c:464 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Freed by task 2968: kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x37/0x50 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2353 [inline] slab_free mm/slub.c:4609 [inline] kfree+0x294/0x480 mm/slub.c:4757 device_release+0xa1/0x240 drivers/base/core.c:2567 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1e4/0x5a0 lib/kobject.c:737 put_device+0x1f/0x30 drivers/base/core.c:3773 hub_port_connect drivers/usb/core/hub.c:5363 [inline] hub_port_connect_change drivers/usb/core/hub.c:5663 [inline] port_event drivers/usb/core/hub.c:5823 [inline] hub_event+0x1bed/0x4f40 drivers/usb/core/hub.c:5905 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3317 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3398 kthread+0x3af/0x750 kernel/kthread.c:464 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 The buggy address belongs to the object at ffff88812223c000 which belongs to the cache kmalloc-2k of size 2048 The buggy address is located 1660 bytes inside of freed 2048-byte region [ffff88812223c000, ffff88812223c800) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x122238 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0x200000000000040(head|node=0|zone=2) page_type: f5(slab) raw: 0200000000000040 ffff888100042000 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000080008 00000000f5000000 0000000000000000 head: 0200000000000040 ffff888100042000 dead000000000122 0000000000000000 head: 0000000000000000 0000000000080008 00000000f5000000 0000000000000000 head: 0200000000000003 ffffea0004888e01 ffffffffffffffff 0000000000000000 head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 2832, tgid 2832 (klogd), ts 48966197880, free_ts 32895863855 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x181/0x1b0 mm/page_alloc.c:1551 prep_new_page mm/page_alloc.c:1559 [inline] get_page_from_freelist+0xe76/0x2b90 mm/page_alloc.c:3477 __alloc_frozen_pages_noprof+0x21c/0x2290 mm/page_alloc.c:4739 alloc_pages_mpol+0xe7/0x410 mm/mempolicy.c:2270 alloc_slab_page mm/slub.c:2423 [inline] allocate_slab mm/slub.c:2587 [inline] new_slab+0x23d/0x330 mm/slub.c:2640 ___slab_alloc+0xc41/0x1670 mm/slub.c:3826 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3916 __slab_alloc_node mm/slub.c:3991 [inline] slab_alloc_node mm/slub.c:4152 [inline] __kmalloc_cache_noprof+0x217/0x3e0 mm/slub.c:4320 kmalloc_noprof include/linux/slab.h:901 [inline] syslog_print+0xf9/0x5d0 kernel/printk/printk.c:1607 do_syslog+0x3e1/0x6c0 kernel/printk/printk.c:1785 __do_sys_syslog kernel/printk/printk.c:1877 [inline] __se_sys_syslog kernel/printk/printk.c:1875 [inline] __x64_sys_syslog+0x74/0xb0 kernel/printk/printk.c:1875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 2926 tgid 2926 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_frozen_pages+0x653/0xde0 mm/page_alloc.c:2660 __folio_put+0x1e8/0x2d0 mm/swap.c:112 folio_put include/linux/mm.h:1489 [inline] put_page include/linux/mm.h:1561 [inline] skb_page_unref include/linux/skbuff_ref.h:43 [inline] __skb_frag_unref include/linux/skbuff_ref.h:56 [inline] skb_release_data+0x5d6/0x910 net/core/skbuff.c:1119 skb_release_all net/core/skbuff.c:1190 [inline] __napi_kfree_skb net/core/skbuff.c:1480 [inline] kfree_skb_napi_cache net/core/skbuff.c:7115 [inline] skb_attempt_defer_free+0x1b9/0x630 net/core/skbuff.c:7137 tcp_eat_recv_skb net/ipv4/tcp.c:1527 [inline] tcp_recvmsg_locked+0x11da/0x2730 net/ipv4/tcp.c:2806 tcp_recvmsg+0x12e/0x680 net/ipv4/tcp.c:2852 inet_recvmsg+0x12b/0x6a0 net/ipv4/af_inet.c:883 sock_recvmsg_nosec net/socket.c:1018 [inline] sock_recvmsg+0x1b2/0x250 net/socket.c:1040 sock_read_iter+0x2bb/0x3b0 net/socket.c:1110 new_sync_read fs/read_write.c:484 [inline] vfs_read+0xa53/0xbf0 fs/read_write.c:565 ksys_read+0x207/0x250 fs/read_write.c:708 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Memory state around the buggy address: ffff88812223c500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88812223c580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88812223c600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88812223c680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88812223c700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup