Title | Replies (including bot) | Last reply |
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KASAN: use-after-free Write in tcindex_set_parms | 1 (2) | 2020/03/16 18:39 |
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KASAN: use-after-free Write in tcindex_set_parms | 1 (2) | 2020/03/16 18:39 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-4.19 | KASAN: use-after-free Write in tcindex_set_parms | C | done | 3 | 1737d | 1741d | 1/1 | fixed on 2020/04/12 11:41 | |
linux-4.14 | KASAN: use-after-free Write in tcindex_set_parms | C | done | 3 | 1729d | 1730d | 1/1 | fixed on 2020/04/18 14:50 |
IPVS: ftp: loaded support on port[0] = 21 ================================================================== BUG: KASAN: use-after-free in tcindex_set_parms+0x17fd/0x1a00 net/sched/cls_tcindex.c:455 Write of size 16 at addr ffff8880a354dab8 by task syz-executor408/10698 CPU: 0 PID: 10698 Comm: syz-executor408 Not tainted 5.6.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x188/0x20d lib/dump_stack.c:118 print_address_description.constprop.0.cold+0xd3/0x315 mm/kasan/report.c:374 __kasan_report.cold+0x1a/0x32 mm/kasan/report.c:506 kasan_report+0xe/0x20 mm/kasan/common.c:641 tcindex_set_parms+0x17fd/0x1a00 net/sched/cls_tcindex.c:455 tcindex_change+0x203/0x2e0 net/sched/cls_tcindex.c:518 tc_new_tfilter+0xa59/0x20b0 net/sched/cls_api.c:2103 rtnetlink_rcv_msg+0x810/0xad0 net/core/rtnetlink.c:5427 netlink_rcv_skb+0x15a/0x410 net/netlink/af_netlink.c:2478 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x537/0x740 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x882/0xe10 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 ____sys_sendmsg+0x6b9/0x7d0 net/socket.c:2345 ___sys_sendmsg+0x100/0x170 net/socket.c:2399 __sys_sendmsg+0xec/0x1b0 net/socket.c:2432 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x440e79 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffecff38fc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000004a2650 RCX: 0000000000440e79 RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 00007ffecff38fd0 R08: 0000000120080522 R09: 0000000120080522 R10: 0000000120080522 R11: 0000000000000246 R12: 00000000004a2650 R13: 0000000000402410 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 1: save_stack+0x1b/0x80 mm/kasan/common.c:72 set_track mm/kasan/common.c:80 [inline] __kasan_kmalloc mm/kasan/common.c:515 [inline] __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:488 kmem_cache_alloc_trace+0x153/0x7d0 mm/slab.c:3551 kmalloc include/linux/slab.h:555 [inline] kzalloc include/linux/slab.h:669 [inline] call_usermodehelper_setup+0x98/0x300 kernel/umh.c:386 kobject_uevent_env+0xcfb/0x11f0 lib/kobject_uevent.c:613 tty_register_device_attr+0x475/0x6f0 drivers/tty/tty_io.c:3164 tty_register_device drivers/tty/tty_io.c:3077 [inline] tty_register_driver+0x42d/0x800 drivers/tty/tty_io.c:3348 legacy_pty_init drivers/tty/pty.c:602 [inline] pty_init+0x6cb/0xeb2 drivers/tty/pty.c:964 do_one_initcall+0x10a/0x7d0 init/main.c:1152 do_initcall_level init/main.c:1225 [inline] do_initcalls init/main.c:1241 [inline] do_basic_setup init/main.c:1261 [inline] kernel_init_freeable+0x501/0x5ae init/main.c:1445 kernel_init+0xd/0x1bb init/main.c:1352 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Freed by task 2259: save_stack+0x1b/0x80 mm/kasan/common.c:72 set_track mm/kasan/common.c:80 [inline] kasan_set_free_info mm/kasan/common.c:337 [inline] __kasan_slab_free+0xf7/0x140 mm/kasan/common.c:476 __cache_free mm/slab.c:3426 [inline] kfree+0x109/0x2b0 mm/slab.c:3757 call_usermodehelper_freeinfo kernel/umh.c:48 [inline] umh_complete kernel/umh.c:62 [inline] umh_complete+0x81/0x90 kernel/umh.c:51 call_usermodehelper_exec_async+0x459/0x710 kernel/umh.c:122 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 The buggy address belongs to the object at ffff8880a354da00 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 184 bytes inside of 192-byte region [ffff8880a354da00, ffff8880a354dac0) The buggy address belongs to the page: page:ffffea00028d5340 refcount:1 mapcount:0 mapping:ffff8880aa000000 index:0x0 flags: 0xfffe0000000200(slab) raw: 00fffe0000000200 ffffea00028d1088 ffff8880aa001148 ffff8880aa000000 raw: 0000000000000000 ffff8880a354d000 0000000100000010 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880a354d980: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880a354da00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8880a354da80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ^ ffff8880a354db00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880a354db80: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/03/22 21:29 | upstream | b74b991fb8b9 | 78267cec | .config | console log | report | syz | C | ci-upstream-kasan-gce-selinux-root | |||
2020/03/22 19:30 | upstream | b74b991fb8b9 | 78267cec | .config | console log | report | syz | C | ci-upstream-kasan-gce-selinux-root | |||
2020/03/19 04:31 | upstream | 5076190daded | 0a96a13c | .config | console log | report | syz | C | ci-upstream-kasan-gce-root | |||
2020/03/10 07:48 | upstream | 30bb5572ce7a | 35f53e45 | .config | console log | report | syz | C | ci-upstream-kasan-gce | |||
2020/03/10 05:48 | upstream | 30bb5572ce7a | 35f53e45 | .config | console log | report | syz | C | ci-upstream-kasan-gce | |||
2020/03/11 19:01 | net-old | 2165fdf4bc2d | e7caca8e | .config | console log | report | syz | C | ci-upstream-net-this-kasan-gce | |||
2020/03/11 10:15 | net-next-old | 1e09e5818b3a | 35f53e45 | .config | console log | report | syz | C | ci-upstream-net-kasan-gce | |||
2020/03/10 21:36 | net-next-old | 6c9ee3069380 | 35f53e45 | .config | console log | report | syz | C | ci-upstream-net-kasan-gce | |||
2020/03/30 16:35 | linux-next | 770fbb32d34e | c8d1cc20 | .config | console log | report | syz | C | ci-upstream-linux-next-kasan-gce-root | |||
2020/03/19 03:46 | upstream | 5076190daded | 0a96a13c | .config | console log | report | syz | ci-upstream-kasan-gce-root | ||||
2020/03/10 16:33 | upstream | 30bb5572ce7a | 35f53e45 | .config | console log | report | syz | ci-upstream-kasan-gce | ||||
2020/03/10 21:03 | net-next-old | 6c9ee3069380 | 35f53e45 | .config | console log | report | syz | ci-upstream-net-kasan-gce | ||||
2020/03/08 09:08 | upstream | c20037652700 | 2e9971bb | .config | console log | report | ci-upstream-kasan-gce-386 |