memory leak in nf_tables_parse_netdev

Title	Replies (including bot)	Last reply
[PATCH 0/4] Netfilter fixes for net	6 (6)	2020/06/15 20:27
[PATCH nf,v2] netfilter: nf_tables: hook list memleak in flowtable deletion	1 (1)	2020/06/12 16:35
[PATCH nf] netfilter: ctnetlink: memleak in filter initialization error path	2 (2)	2020/06/11 08:46
memory leak in nf_tables_parse_netdev_hooks (3)	1 (2)	2020/06/09 22:32

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	memory leak in nf_tables_parse_netdev_hooks netfilter	C			6	1692d	1722d	15/28	fixed on 2020/02/18 14:31
upstream	memory leak in nf_tables_parse_netdev_hooks (2) netfilter	C			2	1671d	1675d	15/28	fixed on 2020/04/15 17:19

upstream

memory leak in nf_tables_parse_netdev_hooks netfilter

1692d

1722d

15/28

fixed on 2020/02/18 14:31

upstream

memory leak in nf_tables_parse_netdev_hooks (2) netfilter

1671d

1675d

15/28

fixed on 2020/04/15 17:19

executing program BUG: memory leak unreferenced object 0xffff88811589cd80 (size 96): comm "syz-executor337", pid 6663, jiffies 4294942418 (age 13.980s) hex dump (first 32 bytes): 00 c9 89 15 81 88 ff ff 68 f9 ff 00 00 c9 ff ff ........h....... 00 cd 89 15 81 88 ff ff 60 52 c5 82 ff ff ff ff ........`R...... backtrace: [<00000000104a1f01>] kmalloc include/linux/slab.h:555 [inline] [<00000000104a1f01>] nft_netdev_hook_alloc+0x3b/0xd0 net/netfilter/nf_tables_api.c:1659 [<000000003bc42f25>] nf_tables_parse_netdev_hooks+0x94/0x210 net/netfilter/nf_tables_api.c:1709 [<000000004b6a9590>] nft_flowtable_parse_hook+0x101/0x1d0 net/netfilter/nf_tables_api.c:6243 [<000000004204916e>] nft_delflowtable_hook net/netfilter/nf_tables_api.c:6562 [inline] [<000000004204916e>] nf_tables_delflowtable+0x249/0x4a0 net/netfilter/nf_tables_api.c:6640 [<00000000fa0bd6d2>] nfnetlink_rcv_batch+0x2f3/0x810 net/netfilter/nfnetlink.c:433 [<000000004d4e8df7>] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:543 [inline] [<000000004d4e8df7>] nfnetlink_rcv+0x183/0x1b0 net/netfilter/nfnetlink.c:561 [<000000001710060c>] netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] [<000000001710060c>] netlink_unicast+0x20a/0x2f0 net/netlink/af_netlink.c:1329 [<00000000bb814b80>] netlink_sendmsg+0x2b5/0x560 net/netlink/af_netlink.c:1918 [<00000000eb7a00fe>] sock_sendmsg_nosec net/socket.c:652 [inline] [<00000000eb7a00fe>] sock_sendmsg+0x4c/0x60 net/socket.c:672 [<000000008cc37c52>] ____sys_sendmsg+0x2c4/0x2f0 net/socket.c:2352 [<00000000b882e46e>] ___sys_sendmsg+0x8a/0xd0 net/socket.c:2406 [<00000000870e7750>] __sys_sendmsg+0x77/0xe0 net/socket.c:2439 [<000000002b222e75>] do_syscall_64+0x6e/0x220 arch/x86/entry/common.c:295 [<00000000356e1a8a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811589c900 (size 96): comm "syz-executor337", pid 6663, jiffies 4294942418 (age 13.980s) hex dump (first 32 bytes): 68 f9 ff 00 00 c9 ff ff 80 cd 89 15 81 88 ff ff h............... 00 00 00 00 00 00 00 00 60 52 c5 82 ff ff ff ff ........`R...... backtrace: [<00000000104a1f01>] kmalloc include/linux/slab.h:555 [inline] [<00000000104a1f01>] nft_netdev_hook_alloc+0x3b/0xd0 net/netfilter/nf_tables_api.c:1659 [<000000003bc42f25>] nf_tables_parse_netdev_hooks+0x94/0x210 net/netfilter/nf_tables_api.c:1709 [<000000004b6a9590>] nft_flowtable_parse_hook+0x101/0x1d0 net/netfilter/nf_tables_api.c:6243 [<000000004204916e>] nft_delflowtable_hook net/netfilter/nf_tables_api.c:6562 [inline] [<000000004204916e>] nf_tables_delflowtable+0x249/0x4a0 net/netfilter/nf_tables_api.c:6640 [<00000000fa0bd6d2>] nfnetlink_rcv_batch+0x2f3/0x810 net/netfilter/nfnetlink.c:433 [<000000004d4e8df7>] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:543 [inline] [<000000004d4e8df7>] nfnetlink_rcv+0x183/0x1b0 net/netfilter/nfnetlink.c:561 [<000000001710060c>] netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] [<000000001710060c>] netlink_unicast+0x20a/0x2f0 net/netlink/af_netlink.c:1329 [<00000000bb814b80>] netlink_sendmsg+0x2b5/0x560 net/netlink/af_netlink.c:1918 [<00000000eb7a00fe>] sock_sendmsg_nosec net/socket.c:652 [inline] [<00000000eb7a00fe>] sock_sendmsg+0x4c/0x60 net/socket.c:672 [<000000008cc37c52>] ____sys_sendmsg+0x2c4/0x2f0 net/socket.c:2352 [<00000000b882e46e>] ___sys_sendmsg+0x8a/0xd0 net/socket.c:2406 [<00000000870e7750>] __sys_sendmsg+0x77/0xe0 net/socket.c:2439 [<000000002b222e75>] do_syscall_64+0x6e/0x220 arch/x86/entry/common.c:295 [<00000000356e1a8a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888115961800 (size 96): comm "syz-executor337", pid 6664, jiffies 4294943010 (age 8.060s) hex dump (first 32 bytes): 00 19 96 15 81 88 ff ff 68 f9 ff 00 00 c9 ff ff ........h....... 00 00 00 00 00 00 00 00 60 52 c5 82 ff ff ff ff ........`R...... backtrace: [<00000000104a1f01>] kmalloc include/linux/slab.h:555 [inline] [<00000000104a1f01>] nft_netdev_hook_alloc+0x3b/0xd0 net/netfilter/nf_tables_api.c:1659 [<000000003bc42f25>] nf_tables_parse_netdev_hooks+0x94/0x210 net/netfilter/nf_tables_api.c:1709 [<000000004b6a9590>] nft_flowtable_parse_hook+0x101/0x1d0 net/netfilter/nf_tables_api.c:6243 [<000000004204916e>] nft_delflowtable_hook net/netfilter/nf_tables_api.c:6562 [inline] [<000000004204916e>] nf_tables_delflowtable+0x249/0x4a0 net/netfilter/nf_tables_api.c:6640 [<00000000fa0bd6d2>] nfnetlink_rcv_batch+0x2f3/0x810 net/netfilter/nfnetlink.c:433 [<000000004d4e8df7>] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:543 [inline] [<000000004d4e8df7>] nfnetlink_rcv+0x183/0x1b0 net/netfilter/nfnetlink.c:561 [<000000001710060c>] netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] [<000000001710060c>] netlink_unicast+0x20a/0x2f0 net/netlink/af_netlink.c:1329 [<00000000bb814b80>] netlink_sendmsg+0x2b5/0x560 net/netlink/af_netlink.c:1918 [<00000000eb7a00fe>] sock_sendmsg_nosec net/socket.c:652 [inline] [<00000000eb7a00fe>] sock_sendmsg+0x4c/0x60 net/socket.c:672 [<000000008cc37c52>] ____sys_sendmsg+0x2c4/0x2f0 net/socket.c:2352 [<00000000b882e46e>] ___sys_sendmsg+0x8a/0xd0 net/socket.c:2406 [<00000000870e7750>] __sys_sendmsg+0x77/0xe0 net/socket.c:2439 [<000000002b222e75>] do_syscall_64+0x6e/0x220 arch/x86/entry/common.c:295 [<00000000356e1a8a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9