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Xin Long f31dd15858 tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header
[ Upstream commit 1c075b192f ]

This is a follow-up for commit 974cb0e3e7 ("tipc: fix uninit-value
in tipc_nl_compat_name_table_dump") where it should have type casted
sizeof(..) to int to work when TLV_GET_DATA_LEN() returns a negative
value.

syzbot reported a call trace because of it:

  BUG: KMSAN: uninit-value in ...
   tipc_nl_compat_name_table_dump+0x841/0xea0 net/tipc/netlink_compat.c:934
   __tipc_nl_compat_dumpit+0xab2/0x1320 net/tipc/netlink_compat.c:238
   tipc_nl_compat_dumpit+0x991/0xb50 net/tipc/netlink_compat.c:321
   tipc_nl_compat_recv+0xb6e/0x1640 net/tipc/netlink_compat.c:1324
   genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline]
   genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]
   genl_rcv_msg+0x103f/0x1260 net/netlink/genetlink.c:792
   netlink_rcv_skb+0x3a5/0x6c0 net/netlink/af_netlink.c:2501
   genl_rcv+0x3c/0x50 net/netlink/genetlink.c:803
   netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
   netlink_unicast+0xf3b/0x1270 net/netlink/af_netlink.c:1345
   netlink_sendmsg+0x1288/0x1440 net/netlink/af_netlink.c:1921
   sock_sendmsg_nosec net/socket.c:714 [inline]
   sock_sendmsg net/socket.c:734 [inline]

Reported-by: syzbot+e5dbaaa238680ce206ea@syzkaller.appspotmail.com
Fixes: 974cb0e3e7 ("tipc: fix uninit-value in tipc_nl_compat_name_table_dump")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Link: https://lore.kernel.org/r/ccd6a7ea801b15aec092c3b532a883b4c5708695.1667594933.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-16 09:57:11 +01:00
arch KVM: s390: pv: don't allow userspace to set the clock under PV 2022-11-16 09:57:10 +01:00
block block, bfq: protect 'bfqd->queued' by 'bfqd->lock' 2022-11-10 18:14:24 +01:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:13:17 +02:00
crypto crypto: akcipher - default implementation for setting a private key 2022-10-26 13:25:42 +02:00
Documentation KVM: s390: pv: don't allow userspace to set the clock under PV 2022-11-16 09:57:10 +01:00
drivers net: broadcom: Fix BCMGENET Kconfig 2022-11-16 09:57:11 +01:00
fs fuse: fix readdir cache race 2022-11-16 09:57:07 +01:00
include capabilities: fix undefined behavior in bit shift for CAP_TO_MASK 2022-11-16 09:57:10 +01:00
init Kconfig: Add option for asm goto w/ tied outputs to workaround clang-13 bug 2022-06-09 10:21:25 +02:00
ipc ipc: remove memcg accounting for sops objects in do_semtimedop() 2022-11-10 18:14:29 +01:00
kernel bpf: Fix wrong reg type conversion in release_reference() 2022-11-16 09:57:09 +01:00
lib dyndbg: drop EXPORTed dynamic_debug_exec_queries 2022-10-26 13:25:34 +02:00
LICENSES
mm mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages 2022-11-03 23:57:50 +09:00
net tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header 2022-11-16 09:57:11 +01:00
samples x86: Prepare inline-asm for straight-line-speculation 2022-07-25 11:26:29 +02:00
scripts kbuild: Add skip_encoding_btf_enum64 option to pahole 2022-10-28 12:57:12 +02:00
security capabilities: fix potential memleak on error path from vfs_getxattr_alloc() 2022-11-10 18:14:26 +01:00
sound ALSA: usb-audio: Add quirks for MacroSilicon MS2100/MS2106 devices 2022-11-10 18:14:24 +01:00
tools bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE 2022-11-16 09:57:08 +01:00
usr usr/include/Makefile: add linux/nfc.h to the compile-test coverage 2022-02-01 17:25:48 +01:00
virt kvm: Add support for arch compat vm ioctls 2022-10-30 09:41:15 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: add Amir as xfs maintainer for 5.10.y 2022-07-02 16:39:22 +02:00
Makefile Linux 5.10.154 2022-11-10 18:14:30 +01:00
README

Linux kernel
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There are various text files in the Documentation/ subdirectory,
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