Hello, syzbot found the following issue on:
HEAD commit: 0f61b1860cc3 Linux 6.19-rc5 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=110e7922580000 kernel config: https://syzkaller.appspot.com/x/.config?x=87bc41cae23d2144 dashboard link: https://syzkaller.appspot.com/bug?extid=7ff4013eabad1407b70a compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1241a99a580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=165b8052580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/fba5be00b810/disk-0f61b186.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/fc83311cd569/vmlinux-0f61b186.xz kernel image: https://storage.googleapis.com/syzbot-assets/005d9685b497/bzImage-0f61b186.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: [email protected] BUG: memory leak unreferenced object 0xffff88810a03e300 (size 240): comm "softirq", pid 0, jiffies 4294943617 hex dump (first 32 bytes): 90 dc d8 12 81 88 ff ff 90 dc d8 12 81 88 ff ff ................ 00 00 00 00 00 00 00 00 00 dc d8 12 81 88 ff ff ................ backtrace (crc 2f85baf): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4958 [inline] kmem_cache_alloc_bulk_noprof+0x22d/0x3e0 mm/slub.c:7521 napi_skb_cache_get+0xa9/0xd0 net/core/skbuff.c:291 __alloc_skb+0x214/0x2b0 net/core/skbuff.c:668 napi_alloc_skb+0x118/0x180 net/core/skbuff.c:832 page_to_skb+0xee/0x5e0 drivers/net/virtio_net.c:904 receive_mergeable drivers/net/virtio_net.c:2514 [inline] receive_buf+0x49f/0x2670 drivers/net/virtio_net.c:2660 virtnet_receive_packets drivers/net/virtio_net.c:3023 [inline] virtnet_receive drivers/net/virtio_net.c:3047 [inline] virtnet_poll+0x7d6/0x16e0 drivers/net/virtio_net.c:3136 __napi_poll+0x44/0x3a0 net/core/dev.c:7668 napi_poll net/core/dev.c:7731 [inline] net_rx_action+0x492/0x560 net/core/dev.c:7883 handle_softirqs+0xe1/0x2e0 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0x98/0xc0 kernel/softirq.c:723 common_interrupt+0x87/0xa0 arch/x86/kernel/irq.c:319 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:688 BUG: memory leak unreferenced object 0xffff88810adf5e40 (size 704): comm "kworker/u9:0", pid 51, jiffies 4294943617 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 (crc f18cfd82): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4958 [inline] slab_alloc_node mm/slub.c:5263 [inline] kmem_cache_alloc_node_noprof+0x384/0x5a0 mm/slub.c:5315 kmalloc_reserve+0xe6/0x180 net/core/skbuff.c:586 __alloc_skb+0x111/0x2b0 net/core/skbuff.c:690 alloc_skb include/linux/skbuff.h:1383 [inline] __skb_tstamp_tx+0x162/0x4c0 net/core/skbuff.c:5677 hci_conn_tx_queue+0x11c/0x1d0 net/bluetooth/hci_conn.c:3049 hci_send_conn_frame net/bluetooth/hci_core.c:3086 [inline] hci_sched_acl_pkt net/bluetooth/hci_core.c:3701 [inline] hci_sched_acl net/bluetooth/hci_core.c:3726 [inline] hci_tx_work+0x437/0x570 net/bluetooth/hci_core.c:3820 process_one_work+0x26b/0x620 kernel/workqueue.c:3257 process_scheduled_works kernel/workqueue.c:3340 [inline] worker_thread+0x2c4/0x4f0 kernel/workqueue.c:3421 kthread+0x15b/0x310 kernel/kthread.c:463 ret_from_fork+0x2cf/0x300 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF --- 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 [email protected]. 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
