aoe: packet could not be sent on bond1. consider increasing tx_queue_len bridge2600 selects TX queue 0, but real number of TX queues is 0 ================================================================== BUG: KASAN: use-after-free in __dev_queue_xmit+0x66c/0x2a6c net/core/dev.c:4206 Read of size 8 at addr ffff000110ca1c08 by task aoe_tx0/2048 CPU: 1 PID: 2048 Comm: aoe_tx0 Not tainted 5.15.144-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 print_address_description+0x7c/0x3f0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x174/0x1e4 mm/kasan/report.c:451 __asan_report_load8_noabort+0x44/0x50 mm/kasan/report_generic.c:309 __dev_queue_xmit+0x66c/0x2a6c net/core/dev.c:4206 dev_queue_xmit+0x24/0x34 net/core/dev.c:4278 tx+0x8c/0x130 drivers/block/aoe/aoenet.c:63 kthread+0x1ac/0x374 drivers/block/aoe/aoecmd.c:1230 kthread+0x37c/0x45c kernel/kthread.c:319 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 Allocated by task 10747: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc+0xbc/0xfc mm/kasan/common.c:513 __kasan_kmalloc+0x10/0x1c mm/kasan/common.c:522 kasan_kmalloc include/linux/kasan.h:264 [inline] __kmalloc_node+0x2c0/0x5b8 mm/slub.c:4455 kmalloc_node include/linux/slab.h:614 [inline] kvmalloc_node+0x88/0x204 mm/util.c:619 kvmalloc include/linux/mm.h:805 [inline] kvzalloc include/linux/mm.h:813 [inline] netif_alloc_netdev_queues net/core/dev.c:10206 [inline] alloc_netdev_mqs+0x4b8/0x9d4 net/core/dev.c:10892 rtnl_create_link+0x2cc/0x8b4 net/core/rtnetlink.c:3206 __rtnl_newlink net/core/rtnetlink.c:3491 [inline] rtnl_newlink+0xffc/0x1af4 net/core/rtnetlink.c:3549 rtnetlink_rcv_msg+0xa74/0xdac net/core/rtnetlink.c:5630 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2505 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5648 netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline] netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1356 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1924 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] ____sys_sendmsg+0x584/0x870 net/socket.c:2429 ___sys_sendmsg+0x214/0x294 net/socket.c:2483 __sys_sendmsg net/socket.c:2512 [inline] __do_sys_sendmsg net/socket.c:2521 [inline] __se_sys_sendmsg net/socket.c:2519 [inline] __arm64_sys_sendmsg+0x1ac/0x25c net/socket.c:2519 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Freed by task 10747: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4c/0x84 mm/kasan/common.c:46 kasan_set_free_info+0x28/0x4c mm/kasan/generic.c:360 ____kasan_slab_free+0x118/0x164 mm/kasan/common.c:366 __kasan_slab_free+0x18/0x28 mm/kasan/common.c:374 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1705 [inline] slab_free_freelist_hook+0x128/0x1ec mm/slub.c:1731 slab_free mm/slub.c:3499 [inline] kfree+0x178/0x410 mm/slub.c:4559 kvfree+0x40/0x50 mm/util.c:654 netif_free_tx_queues net/core/dev.c:10194 [inline] free_netdev+0xa4/0x3e8 net/core/dev.c:10949 netdev_run_todo+0x900/0xae0 net/core/dev.c:10646 rtnl_unlock net/core/rtnetlink.c:112 [inline] rtnetlink_rcv_msg+0xa7c/0xdac net/core/rtnetlink.c:5631 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2505 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5648 netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline] netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1356 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1924 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] ____sys_sendmsg+0x584/0x870 net/socket.c:2429 ___sys_sendmsg+0x214/0x294 net/socket.c:2483 __sys_sendmsg net/socket.c:2512 [inline] __do_sys_sendmsg net/socket.c:2521 [inline] __se_sys_sendmsg net/socket.c:2519 [inline] __arm64_sys_sendmsg+0x1ac/0x25c net/socket.c:2519 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 The buggy address belongs to the object at ffff000110ca1c00 which belongs to the cache kmalloc-cg-512 of size 512 The buggy address is located 8 bytes inside of 512-byte region [ffff000110ca1c00, ffff000110ca1e00) The buggy address belongs to the page: page:0000000093057602 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x150ca0 head:0000000093057602 order:2 compound_mapcount:0 compound_pincount:0 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 0000000000000000 0000000100000001 ffff0000c0003080 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff000110ca1b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff000110ca1b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff000110ca1c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff000110ca1c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff000110ca1d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Unable to handle kernel paging request at virtual address f1bb80500000053f Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004 CM = 0, WnR = 0 [f1bb80500000053f] address between user and kernel address ranges Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 2048 Comm: aoe_tx0 Tainted: G B 5.15.144-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __dev_queue_xmit+0x74c/0x2a6c net/core/dev.c:4209 lr : trace_net_dev_queue include/trace/events/net.h:143 [inline] lr : __dev_queue_xmit+0x740/0x2a6c net/core/dev.c:4208 sp : ffff800022617a60 x29: ffff800022617c30 x28: dfff800000000000 x27: 8de00280000029fb x26: ffff000148421800 x25: 0000000000000000 x24: ffff000110ca1c00 x23: ffff800022617b20 x22: ffff0001482dbbc5 x21: ffff80001490d310 x20: ffff0001482dbb40 x19: 0000000000000002 x18: 0000000000000202 x17: 0000000000000000 x16: ffff800011977b6c x15: 00000000ffffffff x14: ffff0000ce909b40 x13: 0000000000000001 x12: ffff700002de2764 x11: 0000000000000200 x10: 0000000000000000 x9 : ffff0000ce909b40 x8 : 11bc00500000053f x7 : 0000000000000000 x6 : 0000000000000001 x5 : ffff8000226170f8 x4 : 0000000000000000 x3 : ffff80000819b844 x2 : 0000000000000001 x1 : ffff800011f71400 x0 : 0000000000000001 Call trace: __dev_queue_xmit+0x74c/0x2a6c net/core/dev.c:4209 dev_queue_xmit+0x24/0x34 net/core/dev.c:4278 tx+0x8c/0x130 drivers/block/aoe/aoenet.c:63 kthread+0x1ac/0x374 drivers/block/aoe/aoecmd.c:1230 kthread+0x37c/0x45c kernel/kthread.c:319 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 Code: 961c5f1c 14000002 961c5f1a d343ff68 (387c6908) ---[ end trace 25fa8628af1b8c2f ]--- ---------------- Code disassembly (best guess): 0: 961c5f1c bl 0xfffffffff8717c70 4: 14000002 b 0xc 8: 961c5f1a bl 0xfffffffff8717c70 c: d343ff68 lsr x8, x27, #3 * 10: 387c6908 ldrb w8, [x8, x28] <-- trapping instruction