)]}'
{
  "commit": "efeb7dfea8ee10cdec11b6b6ba4e405edbe75809",
  "tree": "14223154b0e809d0dcc05f14784b84a52f55a9d1",
  "parents": [
    "6d6eeabcfaba2fcadf5443b575789ea606f9de83"
  ],
  "author": {
    "name": "Ido Schimmel",
    "email": "idosch@nvidia.com",
    "time": "Wed Jan 17 16:04:17 2024 +0100"
  },
  "committer": {
    "name": "Jakub Kicinski",
    "email": "kuba@kernel.org",
    "time": "Thu Jan 18 09:48:08 2024 -0800"
  },
  "message": "mlxsw: spectrum_acl_tcam: Fix NULL pointer dereference in error path\n\nWhen calling mlxsw_sp_acl_tcam_region_destroy() from an error path after\nfailing to attach the region to an ACL group, we hit a NULL pointer\ndereference upon \u0027region-\u003egroup-\u003etcam\u0027 [1].\n\nFix by retrieving the \u0027tcam\u0027 pointer using mlxsw_sp_acl_to_tcam().\n\n[1]\nBUG: kernel NULL pointer dereference, address: 0000000000000000\n[...]\nRIP: 0010:mlxsw_sp_acl_tcam_region_destroy+0xa0/0xd0\n[...]\nCall Trace:\n mlxsw_sp_acl_tcam_vchunk_get+0x88b/0xa20\n mlxsw_sp_acl_tcam_ventry_add+0x25/0xe0\n mlxsw_sp_acl_rule_add+0x47/0x240\n mlxsw_sp_flower_replace+0x1a9/0x1d0\n tc_setup_cb_add+0xdc/0x1c0\n fl_hw_replace_filter+0x146/0x1f0\n fl_change+0xc17/0x1360\n tc_new_tfilter+0x472/0xb90\n rtnetlink_rcv_msg+0x313/0x3b0\n netlink_rcv_skb+0x58/0x100\n netlink_unicast+0x244/0x390\n netlink_sendmsg+0x1e4/0x440\n ____sys_sendmsg+0x164/0x260\n ___sys_sendmsg+0x9a/0xe0\n __sys_sendmsg+0x7a/0xc0\n do_syscall_64+0x40/0xe0\n entry_SYSCALL_64_after_hwframe+0x63/0x6b\n\nFixes: 22a677661f56 (\"mlxsw: spectrum: Introduce ACL core with simple TCAM implementation\")\nSigned-off-by: Ido Schimmel \u003cidosch@nvidia.com\u003e\nReviewed-by: Amit Cohen \u003camcohen@nvidia.com\u003e\nReviewed-by: Jiri Pirko \u003cjiri@nvidia.com\u003e\nSigned-off-by: Petr Machata \u003cpetrm@nvidia.com\u003e\nAcked-by: Paolo Abeni \u003cpabeni@redhat.com\u003e\nLink: https://lore.kernel.org/r/fb6a4542bbc9fcab5a523802d97059bffbca7126.1705502064.git.petrm@nvidia.com\nSigned-off-by: Jakub Kicinski \u003ckuba@kernel.org\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "d50786b0a6ce47924c55a9fbc53200f50bd96335",
      "old_mode": 33188,
      "old_path": "drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c",
      "new_id": "7d1e91196e943a548996b6789c0a18ea9529b95c",
      "new_mode": 33188,
      "new_path": "drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c"
    }
  ]
}