This patchset fixes the following kernel bug reported by Andrey: BUG: KASAN: stack-out-of-bounds in bond_enslave+0xe0a/0x4ef0 at addr ffff8800666b7792 Write of size 16 by task a.out/3894 page:ffffea000199adc0 count:0 mapcount:0 mapping: (null) index:0x0 flags: 0x100000000000000() raw: 0100000000000000 0000000000000000 0000000000000000 00000000ffffffff raw: 0000000000000000 ffffea000199ade0 0000000000000000 0000000000000000 page dumped because: kasan: bad access detected CPU: 1 PID: 3894 Comm: a.out Not tainted 4.11.0-rc7+ #251 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:16 dump_stack+0x292/0x398 lib/dump_stack.c:52 kasan_report_error mm/kasan/report.c:212 kasan_report+0x4d8/0x510 mm/kasan/report.c:347 check_memory_region_inline mm/kasan/kasan.c:326 check_memory_region+0x139/0x190 mm/kasan/kasan.c:333 memcpy+0x37/0x50 mm/kasan/kasan.c:369 bond_enslave+0xe0a/0x4ef0 drivers/net/bonding/bond_main.c:1491 bond_do_ioctl+0xb5d/0xec0 drivers/net/bonding/bond_main.c:3449 dev_ifsioc+0x53f/0x9f0 net/core/dev_ioctl.c:338 dev_ioctl+0x249/0x1160 net/core/dev_ioctl.c:532 sock_do_ioctl+0x94/0xb0 net/socket.c:913 sock_ioctl+0x28f/0x440 net/socket.c:1004 vfs_ioctl fs/ioctl.c:45 do_vfs_ioctl+0x1bf/0x1780 fs/ioctl.c:685 SYSC_ioctl fs/ioctl.c:700 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:691 entry_SYSCALL_64_fastpath+0x1f/0xc2 arch/x86/entry/entry_64.S:204 RIP: 0033:0x7fc764b31b79 RSP: 002b:00007ffc1d73aa58 EFLAGS: 00000206 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ffc1d73abb0 RCX: 00007fc764b31b79 RDX: 00000000209eafd8 RSI: 0000008000008990 RDI: 0000000000000003 RBP: 00000000004004e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 00007ffc1d73abb0 R14: 0000000000000000 R15: 0000000000000000
Please see each patch for details. Cong Wang (3): net: check mac address length for dev_set_mac_address() bonding: use a larger struct for mac address team: use a larger struct for mac address drivers/net/bonding/bond_alb.c | 8 ++++---- drivers/net/bonding/bond_main.c | 17 +++++++++-------- drivers/net/bonding/bonding_priv.h | 6 ++++++ drivers/net/team/team.c | 9 ++++++--- include/linux/netdevice.h | 2 +- net/core/dev.c | 10 +++++++--- net/core/dev_ioctl.c | 2 ++ 7 files changed, 35 insertions(+), 19 deletions(-) -- 2.5.5
