Lizhi Xu eb09fbeb48 mac802154: check local interfaces before deleting sdata list ... syzkaller reported a corrupted list in ieee802154_if_remove. [1] Remove an IEEE 802.15.4 network interface after unregister an IEEE 802.15.4 hardware device from the system. CPU0 CPU1 ==== ==== genl_family_rcv_msg_doit ieee802154_unregister_hw ieee802154_del_iface ieee802154_remove_interfaces rdev_del_virtual_intf_deprecated list_del(&sdata->list) ieee802154_if_remove list_del_rcu The net device has been unregistered, since the rcu grace period, unregistration must be run before ieee802154_if_remove. To avoid this issue, add a check for local->interfaces before deleting sdata list. [1] kernel BUG at lib/list_debug.c:58! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 6277 Comm: syz-executor157 Not tainted 6.12.0-rc6-syzkaller-00005-g557329bcecc2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__list_del_entry_valid_or_report+0xf4/0x140 lib/list_debug.c:56 Code: e8 a1 7e 00 07 90 0f 0b 48 c7 c7 e0 37 60 8c 4c 89 fe e8 8f 7e 00 07 90 0f 0b 48 c7 c7 40 38 60 8c 4c 89 fe e8 7d 7e 00 07 90 <0f> 0b 48 c7 c7 a0 38 60 8c 4c 89 fe e8 6b 7e 00 07 90 0f 0b 48 c7 RSP: 0018:ffffc9000490f3d0 EFLAGS: 00010246 RAX: 000000000000004e RBX: dead000000000122 RCX: d211eee56bb28d00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff88805b278dd8 R08: ffffffff8174a12c R09: 1ffffffff2852f0d R10: dffffc0000000000 R11: fffffbfff2852f0e R12: dffffc0000000000 R13: dffffc0000000000 R14: dead000000000100 R15: ffff88805b278cc0 FS: 0000555572f94380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056262e4a3000 CR3: 0000000078496000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __list_del_entry_valid include/linux/list.h:124 [inline] __list_del_entry include/linux/list.h:215 [inline] list_del_rcu include/linux/rculist.h:157 [inline] ieee802154_if_remove+0x86/0x1e0 net/mac802154/iface.c:687 rdev_del_virtual_intf_deprecated net/ieee802154/rdev-ops.h:24 [inline] ieee802154_del_iface+0x2c0/0x5c0 net/ieee802154/nl-phy.c:323 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2551 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:729 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:744 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2607 ___sys_sendmsg net/socket.c:2661 [inline] __sys_sendmsg+0x292/0x380 net/socket.c:2690 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Reported-and-tested-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=985f827280dc3a6e7e92 Signed-off-by: Lizhi Xu <lizhi.xu@windriver.com> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/20241113095129.1457225-1-lizhi.xu@windriver.com Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>		2024-11-19 10:54:17 +01:00
..
cfg.c	mac802154: Avoid new associations while disassociating	2023-12-15 11:14:57 +01:00
cfg.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
driver-ops.h	mac802154: set filter at drv_start()	2022-10-12 12:56:58 +02:00
ieee802154_i.h	mac802154: Handle disassociation notifications from peers	2023-11-20 11:43:33 +01:00
iface.c	mac802154: check local interfaces before deleting sdata list	2024-11-19 10:54:17 +01:00
Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
llsec.c	mac802154: fix llsec key resources release in mac802154_llsec_key_del	2024-03-06 21:01:26 +01:00
llsec.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174	2019-05-30 11:26:41 -07:00
mac_cmd.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174	2019-05-30 11:26:41 -07:00
main.c	mac802154: fix time calculation in ieee802154_configure_durations()	2024-05-18 23:46:25 +02:00
Makefile	mac802154: Handle passive scanning	2023-01-03 19:48:43 +01:00
mib.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174	2019-05-30 11:26:41 -07:00
rx.c	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
scan.c	mac802154: Fix potential RCU dereference issue in mac802154_scan_worker	2024-09-24 11:53:50 +02:00
trace.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace.h	ieee802154: Replace strlcpy with strscpy	2023-06-16 22:14:24 +02:00
tx.c	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
util.c	net: mac802154: Fixup function parameter name in docs	2022-10-26 09:40:34 +02:00