From: Pablo Neira Ayuso Date: Sun, 4 Jan 2015 14:14:22 +0000 (+0100) Subject: netfilter: nf_tables: fix flush ruleset chain dependencies X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~280^2~20^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a2f18db0c68fec96631c10cad9384c196e9008ac;p=pandora-kernel.git netfilter: nf_tables: fix flush ruleset chain dependencies Jumping between chains doesn't mix well with flush ruleset. Rules from a different chain and set elements may still refer to us. [ 353.373791] ------------[ cut here ]------------ [ 353.373845] kernel BUG at net/netfilter/nf_tables_api.c:1159! [ 353.373896] invalid opcode: 0000 [#1] SMP [ 353.373942] Modules linked in: intel_powerclamp uas iwldvm iwlwifi [ 353.374017] CPU: 0 PID: 6445 Comm: 31c3.nft Not tainted 3.18.0 #98 [ 353.374069] Hardware name: LENOVO 5129CTO/5129CTO, BIOS 6QET47WW (1.17 ) 07/14/2010 [...] [ 353.375018] Call Trace: [ 353.375046] [] ? nf_tables_commit+0x381/0x540 [ 353.375101] [] nfnetlink_rcv+0x3d8/0x4b0 [ 353.375150] [] netlink_unicast+0x105/0x1a0 [ 353.375200] [] netlink_sendmsg+0x32e/0x790 [ 353.375253] [] sock_sendmsg+0x8e/0xc0 [ 353.375300] [] ? move_addr_to_kernel.part.20+0x19/0x70 [ 353.375357] [] ? move_addr_to_kernel+0x19/0x30 [ 353.375410] [] ? verify_iovec+0x42/0xd0 [ 353.375459] [] ___sys_sendmsg+0x3f0/0x400 [ 353.375510] [] ? native_sched_clock+0x2a/0x90 [ 353.375563] [] ? acct_account_cputime+0x17/0x20 [ 353.375616] [] ? account_user_time+0x88/0xa0 [ 353.375667] [] __sys_sendmsg+0x3d/0x80 [ 353.375719] [] ? int_check_syscall_exit_work+0x34/0x3d [ 353.375776] [] SyS_sendmsg+0xd/0x20 [ 353.375823] [] system_call_fastpath+0x16/0x1b Release objects in this order: rules -> sets -> chains -> tables, to make sure no references to chains are held anymore. Reported-by: Asbjoern Sloth Toennesen Signed-off-by: Pablo Neira Ayuso --- Reading git-diff-tree failed