path: root/kernel/bpf/btf.c
diff options
authorLinus Torvalds <>2020-02-08 17:15:08 -0800
committerLinus Torvalds <>2020-02-08 17:15:08 -0800
commit291abfea4746897b821830e0189dc225abd401eb (patch)
treecbdf93a2ade8842c80a2272fae2088f33c09b336 /kernel/bpf/btf.c
parentd4f309ca411887cd61ea389c7abfb70c2eb1e532 (diff)
parent29ca3b31756fb7cfbfc85f2d82a0475bf38cc1ed (diff)
Merge git://
Pull networking fixes from David Miller: 1) Unbalanced locking in mwifiex_process_country_ie, from Brian Norris. 2) Fix thermal zone registration in iwlwifi, from Andrei Otcheretianski. 3) Fix double free_irq in sgi ioc3 eth, from Thomas Bogendoerfer. 4) Use after free in mptcp, from Florian Westphal. 5) Use after free in wireguard's root_remove_peer_lists, from Eric Dumazet. 6) Properly access packets heads in bonding alb code, from Eric Dumazet. 7) Fix data race in skb_queue_len(), from Qian Cai. 8) Fix regression in r8169 on some chips, from Heiner Kallweit. 9) Fix XDP program ref counting in hv_netvsc, from Haiyang Zhang. 10) Certain kinds of set link netlink operations can cause a NULL deref in the ipv6 addrconf code. Fix from Eric Dumazet. 11) Don't cancel uninitialized work queue in drop monitor, from Ido Schimmel. * git:// (84 commits) net: thunderx: use proper interface type for RGMII mt76: mt7615: fix max_nss in mt7615_eeprom_parse_hw_cap bpf: Improve bucket_log calculation logic selftests/bpf: Test freeing sockmap/sockhash with a socket in it bpf, sockhash: Synchronize_rcu before free'ing map bpf, sockmap: Don't sleep while holding RCU lock on tear-down bpftool: Don't crash on missing xlated program instructions bpf, sockmap: Check update requirements after locking drop_monitor: Do not cancel uninitialized work item mlxsw: spectrum_dpipe: Add missing error path mlxsw: core: Add validation of hardware device types for MGPIR register mlxsw: spectrum_router: Clear offload indication from IPv6 nexthops on abort selftests: mlxsw: Add test cases for local table route replacement mlxsw: spectrum_router: Prevent incorrect replacement of local table routes net: dsa: microchip: enable module autoprobe ipv6/addrconf: fix potential NULL deref in inet6_set_link_af() dpaa_eth: support all modes with rate adapting PHYs net: stmmac: update pci platform data to use phy_interface net: stmmac: xgmac: fix missing IFF_MULTICAST checki in dwxgmac2_set_filter net: stmmac: fix missing IFF_MULTICAST check in dwmac4_set_filter ...
Diffstat (limited to 'kernel/bpf/btf.c')
1 files changed, 4 insertions, 6 deletions
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index b7c1660fb594..805c43b083e9 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -3643,7 +3643,7 @@ struct btf *btf_parse_vmlinux(void)
goto errout;
- bpf_struct_ops_init(btf);
+ bpf_struct_ops_init(btf, log);
refcount_set(&btf->refcnt, 1);
@@ -3931,6 +3931,7 @@ again:
if (btf_type_is_ptr(mtype)) {
const struct btf_type *stype;
+ u32 id;
if (msize != size || off != moff) {
@@ -3939,12 +3940,9 @@ again:
return -EACCES;
- stype = btf_type_by_id(btf_vmlinux, mtype->type);
- /* skip modifiers */
- while (btf_type_is_modifier(stype))
- stype = btf_type_by_id(btf_vmlinux, stype->type);
+ stype = btf_type_skip_modifiers(btf_vmlinux, mtype->type, &id);
if (btf_type_is_struct(stype)) {
- *next_btf_id = mtype->type;
+ *next_btf_id = id;
return PTR_TO_BTF_ID;