Hello, syzbot found the following issue on: HEAD commit: c42d9eeef8e5 Merge tag 'hardening-v6.7-rc2' of git://git.k.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13bff22f680000 kernel config: https://syzkaller.appspot.com/x/.config?x=e71d284dd6560ca8 dashboard link: https://syzkaller.appspot.com/bug?extid=83763e624cfec6b462cb 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=1564223f680000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17a7c024e80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/026cc0fc446f/disk-c42d9eee.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/c4b4d6d092c1/vmlinux-c42d9eee.xz kernel image: https://storage.googleapis.com/syzbot-assets/1865f885e9d6/bzImage-c42d9eee.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+83763e624cfec6b462cb@xxxxxxxxxxxxxxxxxxxxxxxxx executing program BUG: memory leak unreferenced object 0xffff888107a5c000 (size 4096): comm "kworker/1:0", pid 22, jiffies 4294943134 (age 18.720s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff816337cd>] kmemleak_alloc_recursive include/linux/kmemleak.h:42 [inline] [<ffffffff816337cd>] slab_post_alloc_hook mm/slab.h:766 [inline] [<ffffffff816337cd>] slab_alloc_node mm/slub.c:3478 [inline] [<ffffffff816337cd>] __kmem_cache_alloc_node+0x2dd/0x3f0 mm/slub.c:3517 [<ffffffff8157e625>] kmalloc_trace+0x25/0x90 mm/slab_common.c:1098 [<ffffffff83cee442>] kmalloc include/linux/slab.h:600 [inline] [<ffffffff83cee442>] _r8712_init_xmit_priv+0x2b2/0x6e0 drivers/staging/rtl8712/rtl871x_xmit.c:130 [<ffffffff83ce9033>] r8712_init_drv_sw+0xc3/0x290 drivers/staging/rtl8712/os_intfs.c:311 [<ffffffff83ce7ce6>] r871xu_drv_init+0x1c6/0x920 drivers/staging/rtl8712/usb_intf.c:386 [<ffffffff832d0f0b>] usb_probe_interface+0x16b/0x3a0 drivers/usb/core/driver.c:396 [<ffffffff82c3bb06>] call_driver_probe drivers/base/dd.c:579 [inline] [<ffffffff82c3bb06>] really_probe+0x126/0x440 drivers/base/dd.c:658 [<ffffffff82c3bee3>] __driver_probe_device+0xc3/0x190 drivers/base/dd.c:800 [<ffffffff82c3bfda>] driver_probe_device+0x2a/0x120 drivers/base/dd.c:830 [<ffffffff82c3c1d4>] __device_attach_driver+0x104/0x160 drivers/base/dd.c:958 [<ffffffff82c38f5d>] bus_for_each_drv+0xcd/0x120 drivers/base/bus.c:457 [<ffffffff82c3c6fa>] __device_attach+0xfa/0x290 drivers/base/dd.c:1030 [<ffffffff82c3a6ca>] bus_probe_device+0xca/0xd0 drivers/base/bus.c:532 [<ffffffff82c36b7e>] device_add+0x9be/0xc90 drivers/base/core.c:3625 [<ffffffff832cdfd7>] usb_set_configuration+0x967/0xc70 drivers/usb/core/message.c:2207 [<ffffffff832e0cac>] usb_generic_driver_probe+0x9c/0xf0 drivers/usb/core/generic.c:238 BUG: memory leak unreferenced object 0xffff888107a59000 (size 4096): comm "kworker/1:0", pid 22, jiffies 4294943134 (age 18.720s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff816337cd>] kmemleak_alloc_recursive include/linux/kmemleak.h:42 [inline] [<ffffffff816337cd>] slab_post_alloc_hook mm/slab.h:766 [inline] [<ffffffff816337cd>] slab_alloc_node mm/slub.c:3478 [inline] [<ffffffff816337cd>] __kmem_cache_alloc_node+0x2dd/0x3f0 mm/slub.c:3517 [<ffffffff8157e625>] kmalloc_trace+0x25/0x90 mm/slab_common.c:1098 [<ffffffff83cee442>] kmalloc include/linux/slab.h:600 [inline] [<ffffffff83cee442>] _r8712_init_xmit_priv+0x2b2/0x6e0 drivers/staging/rtl8712/rtl871x_xmit.c:130 [<ffffffff83ce9033>] r8712_init_drv_sw+0xc3/0x290 drivers/staging/rtl8712/os_intfs.c:311 [<ffffffff83ce7ce6>] r871xu_drv_init+0x1c6/0x920 drivers/staging/rtl8712/usb_intf.c:386 [<ffffffff832d0f0b>] usb_probe_interface+0x16b/0x3a0 drivers/usb/core/driver.c:396 [<ffffffff82c3bb06>] call_driver_probe drivers/base/dd.c:579 [inline] [<ffffffff82c3bb06>] really_probe+0x126/0x440 drivers/base/dd.c:658 [<ffffffff82c3bee3>] __driver_probe_device+0xc3/0x190 drivers/base/dd.c:800 [<ffffffff82c3bfda>] driver_probe_device+0x2a/0x120 drivers/base/dd.c:830 [<ffffffff82c3c1d4>] __device_attach_driver+0x104/0x160 drivers/base/dd.c:958 [<ffffffff82c38f5d>] bus_for_each_drv+0xcd/0x120 drivers/base/bus.c:457 [<ffffffff82c3c6fa>] __device_attach+0xfa/0x290 drivers/base/dd.c:1030 [<ffffffff82c3a6ca>] bus_probe_device+0xca/0xd0 drivers/base/bus.c:532 [<ffffffff82c36b7e>] device_add+0x9be/0xc90 drivers/base/core.c:3625 [<ffffffff832cdfd7>] usb_set_configuration+0x967/0xc70 drivers/usb/core/message.c:2207 [<ffffffff832e0cac>] usb_generic_driver_probe+0x9c/0xf0 drivers/usb/core/generic.c:238 BUG: memory leak unreferenced object 0xffff888108475000 (size 4096): comm "kworker/1:0", pid 22, jiffies 4294943134 (age 18.720s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff816337cd>] kmemleak_alloc_recursive include/linux/kmemleak.h:42 [inline] [<ffffffff816337cd>] slab_post_alloc_hook mm/slab.h:766 [inline] [<ffffffff816337cd>] slab_alloc_node mm/slub.c:3478 [inline] [<ffffffff816337cd>] __kmem_cache_alloc_node+0x2dd/0x3f0 mm/slub.c:3517 [<ffffffff8157e625>] kmalloc_trace+0x25/0x90 mm/slab_common.c:1098 [<ffffffff83cee442>] kmalloc include/linux/slab.h:600 [inline] [<ffffffff83cee442>] _r8712_init_xmit_priv+0x2b2/0x6e0 drivers/staging/rtl8712/rtl871x_xmit.c:130 [<ffffffff83ce9033>] r8712_init_drv_sw+0xc3/0x290 drivers/staging/rtl8712/os_intfs.c:311 [<ffffffff83ce7ce6>] r871xu_drv_init+0x1c6/0x920 drivers/staging/rtl8712/usb_intf.c:386 [<ffffffff832d0f0b>] usb_probe_interface+0x16b/0x3a0 drivers/usb/core/driver.c:396 [<ffffffff82c3bb06>] call_driver_probe drivers/base/dd.c:579 [inline] [<ffffffff82c3bb06>] really_probe+0x126/0x440 drivers/base/dd.c:658 [<ffffffff82c3bee3>] __driver_probe_device+0xc3/0x190 drivers/base/dd.c:800 [<ffffffff82c3bfda>] driver_probe_device+0x2a/0x120 drivers/base/dd.c:830 [<ffffffff82c3c1d4>] __device_attach_driver+0x104/0x160 drivers/base/dd.c:958 [<ffffffff82c38f5d>] bus_for_each_drv+0xcd/0x120 drivers/base/bus.c:457 [<ffffffff82c3c6fa>] __device_attach+0xfa/0x290 drivers/base/dd.c:1030 [<ffffffff82c3a6ca>] bus_probe_device+0xca/0xd0 drivers/base/bus.c:532 [<ffffffff82c36b7e>] device_add+0x9be/0xc90 drivers/base/core.c:3625 [<ffffffff832cdfd7>] usb_set_configuration+0x967/0xc70 drivers/usb/core/message.c:2207 [<ffffffff832e0cac>] usb_generic_driver_probe+0x9c/0xf0 drivers/usb/core/generic.c:238 --- 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@xxxxxxxxxxxxxxxx. 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
