On Tue, Jul 23, 2019 at 6:18 PM syzbot <syzbot+5134cdf021c4ed5aaa5f@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > > Hello, > > syzbot found the following crash on: > > HEAD commit: c6dd78fc Merge branch 'x86-urgent-for-linus' of git://git... > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=14be98c8600000 > kernel config: https://syzkaller.appspot.com/x/.config?x=8de7d700ea5ac607 > dashboard link: https://syzkaller.appspot.com/bug?extid=5134cdf021c4ed5aaa5f > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=145df0c8600000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=170001f4600000 +net/rds/message.c maintainers > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+5134cdf021c4ed5aaa5f@xxxxxxxxxxxxxxxxxxxxxxxxx > > BUG: memory leak > unreferenced object 0xffff8881234e9c00 (size 512): > comm "kworker/u4:2", pid 286, jiffies 4294948041 (age 7.750s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 08 9c 4e 23 81 88 ff ff ..........N#.... > 08 9c 4e 23 81 88 ff ff 18 9c 4e 23 81 88 ff ff ..N#......N#.... > backtrace: > [<0000000032e378fa>] kmemleak_alloc_recursive > /./include/linux/kmemleak.h:43 [inline] > [<0000000032e378fa>] slab_post_alloc_hook /mm/slab.h:522 [inline] > [<0000000032e378fa>] slab_alloc /mm/slab.c:3319 [inline] > [<0000000032e378fa>] __do_kmalloc /mm/slab.c:3653 [inline] > [<0000000032e378fa>] __kmalloc+0x16d/0x2d0 /mm/slab.c:3664 > [<0000000015bc9536>] kmalloc /./include/linux/slab.h:557 [inline] > [<0000000015bc9536>] kzalloc /./include/linux/slab.h:748 [inline] > [<0000000015bc9536>] rds_message_alloc+0x3e/0xc0 /net/rds/message.c:291 > [<00000000a806d18d>] rds_send_probe.constprop.0+0x42/0x2f0 > /net/rds/send.c:1419 > [<00000000794a00cc>] rds_send_pong+0x1e/0x23 /net/rds/send.c:1482 > [<00000000b2a248d0>] rds_recv_incoming+0x27e/0x460 /net/rds/recv.c:343 > [<00000000ea1503db>] rds_loop_xmit+0x86/0x100 /net/rds/loop.c:96 > [<00000000a9857f5a>] rds_send_xmit+0x524/0x9a0 /net/rds/send.c:355 > [<00000000557b0101>] rds_send_worker+0x3c/0xd0 /net/rds/threads.c:200 > [<000000004ba94868>] process_one_work+0x23f/0x490 > /kernel/workqueue.c:2269 > [<00000000e793f811>] worker_thread+0x195/0x580 /kernel/workqueue.c:2415 > [<000000003ee8c1a1>] kthread+0x13e/0x160 /kernel/kthread.c:255 > [<000000004cd53c81>] ret_from_fork+0x1f/0x30 > /arch/x86/entry/entry_64.S:352 > > > > --- > This bug 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 bug report. See: > https://goo.gl/tpsmEJ#status for how to communicate with syzbot. > syzbot can test patches for this bug, for details see: > https://goo.gl/tpsmEJ#testing-patches > > -- > You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@xxxxxxxxxxxxxxxx. > To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/000000000000ad1dfe058e5b89ab%40google.com.
