On Thu, Jun 13, 2019 at 2:56 PM syzbot <syzbot+182ce46596c3f2e1e...@syzkaller.appspotmail.com> wrote: > > Hello, > > syzbot found the following crash on: > > HEAD commit: d1fdb6d8 Linux 5.2-rc4 > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=15e5ce1ea00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=cb38d33cd06d8d48 > dashboard link: https://syzkaller.appspot.com/bug?extid=182ce46596c3f2e1eb24 > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1181703ea00000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14e14392a00000 > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+182ce46596c3f2e1e...@syzkaller.appspotmail.com > > -executor774" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 > tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=binder > permissive=1 > BUG: memory leak
Fix sent: https://lore.kernel.org/patchwork/patch/1092398/ > > unreferenced object 0xffff888123934800 (size 32): > comm "syz-executor774", pid 7083, jiffies 4294941834 (age 7.970s) > hex dump (first 32 bytes): > 00 48 93 23 81 88 ff ff 00 48 93 23 81 88 ff ff .H.#.....H.#.... > 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<0000000038ba7202>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<0000000038ba7202>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<0000000038ba7202>] slab_alloc mm/slab.c:3326 [inline] > [<0000000038ba7202>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553 > [<0000000004e63839>] kmalloc include/linux/slab.h:547 [inline] > [<0000000004e63839>] kzalloc include/linux/slab.h:742 [inline] > [<0000000004e63839>] binder_transaction+0x28b/0x2eb0 > drivers/android/binder.c:3072 > [<0000000050997ec4>] binder_thread_write+0x357/0x1430 > drivers/android/binder.c:3794 > [<00000000ab2de227>] binder_ioctl_write_read > drivers/android/binder.c:4827 [inline] > [<00000000ab2de227>] binder_ioctl+0x8bc/0xbb4 > drivers/android/binder.c:5004 > [<000000002eec2b63>] vfs_ioctl fs/ioctl.c:46 [inline] > [<000000002eec2b63>] file_ioctl fs/ioctl.c:509 [inline] > [<000000002eec2b63>] do_vfs_ioctl+0x62a/0x810 fs/ioctl.c:696 > [<0000000048cfc9e6>] ksys_ioctl+0x86/0xb0 fs/ioctl.c:713 > [<0000000030bf392d>] __do_sys_ioctl fs/ioctl.c:720 [inline] > [<0000000030bf392d>] __se_sys_ioctl fs/ioctl.c:718 [inline] > [<0000000030bf392d>] __x64_sys_ioctl+0x1e/0x30 fs/ioctl.c:718 > [<000000007dec438c>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<00000000ae043c96>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > > > --- > 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 syzkal...@googlegroups.com. > > 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 _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
