==================================================================
BUG: KASAN: slab-use-after-free in __ethtool_get_link_ksettings+0x1bf/0x200 net/ethtool/ioctl.c:442
Read of size 8 at addr ffff88805c1622e8 by task kworker/0:2/903
CPU: 0 UID: 0 PID: 903 Comm: kworker/0:2 Not tainted 6.13.0-rc2-syzkaller-00031-gf92f4749861b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events smc_ib_port_event_work
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:489
kasan_report+0xd9/0x110 mm/kasan/report.c:602
__ethtool_get_link_ksettings+0x1bf/0x200 net/ethtool/ioctl.c:442
__ethtool_get_link_ksettings+0x148/0x200 net/ethtool/ioctl.c:449
ib_get_eth_speed+0x123/0xb50 drivers/infiniband/core/verbs.c:1996
rxe_query_port+0x72/0x200 drivers/infiniband/sw/rxe/rxe_verbs.c:55
__ib_query_port drivers/infiniband/core/device.c:2112 [inline]
ib_query_port drivers/infiniband/core/device.c:2144 [inline]
ib_query_port+0x441/0x8a0 drivers/infiniband/core/device.c:2134
smc_ib_remember_port_attr net/smc/smc_ib.c:364 [inline]
smc_ib_port_event_work+0x130/0xc00 net/smc/smc_ib.c:388
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c4/0x3a0 kernel/kthread.c:389
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Allocated by task 5830:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4283 [inline]
__kmalloc_node_noprof+0x21f/0x510 mm/slub.c:4289
__kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:650
alloc_netdev_mqs+0xd9/0x1510 net/core/dev.c:11209
rtnl_create_link+0xc10/0xfa0 net/core/rtnetlink.c:3595
rtnl_newlink_create net/core/rtnetlink.c:3771 [inline]
__rtnl_newlink net/core/rtnetlink.c:3896 [inline]
rtnl_newlink+0x144b/0x1ce0 net/core/rtnetlink.c:4009
rtnetlink_rcv_msg+0x95e/0xea0 net/core/rtnetlink.c:6919
netlink_rcv_skb+0x16e/0x440 net/netlink/af_netlink.c:2542
netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]
netlink_unicast+0x53f/0x7f0 net/netlink/af_netlink.c:1347
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1891
sock_sendmsg_nosec net/socket.c:711 [inline]
__sock_sendmsg net/socket.c:726 [inline]
__sys_sendto+0x48b/0x4f0 net/socket.c:2197
__do_sys_sendto net/socket.c:2204 [inline]
__se_sys_sendto net/socket.c:2200 [inline]
__x64_sys_sendto+0xe0/0x1c0 net/socket.c:2200
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 6967:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:582
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2338 [inline]
slab_free mm/slub.c:4598 [inline]
kfree+0x14f/0x4b0 mm/slub.c:4746
kvfree+0x47/0x50 mm/util.c:693
device_release+0xa4/0x240 drivers/base/core.c:2567
kobject_cleanup lib/kobject.c:689 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x1e7/0x5a0 lib/kobject.c:737
netdev_run_todo+0x7bc/0x12d0 net/core/dev.c:10924
default_device_exit_batch+0x86c/0xae0 net/core/dev.c:12074
ops_exit_list+0x12b/0x180 net/core/net_namespace.c:177
cleanup_net+0x5b7/0xb40 net/core/net_namespace.c:632
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c4/0x3a0 kernel/kthread.c:389
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
The buggy address belongs to the object at ffff88805c162000
which belongs to the cache kmalloc-cg-4k of size 4096
The buggy address is located 744 bytes inside of
freed 4096-byte region [ffff88805c162000, ffff88805c163000)
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5c160
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b04f500 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b04f500 dead000000000122 0000000000000000
head: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0001705801 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd60c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_RETRY_MAYFAIL|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5829, tgid 5829 (syz-executor), ts 95956398547, free_ts 31755294729
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1556
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3474
__alloc_pages_noprof+0x223/0x25b0 mm/page_alloc.c:4751
alloc_pages_mpol_noprof+0x2c9/0x610 mm/mempolicy.c:2269
alloc_slab_page mm/slub.c:2408 [inline]
allocate_slab mm/slub.c:2574 [inline]
new_slab+0x2c9/0x410 mm/slub.c:2627
___slab_alloc+0xdac/0x1870 mm/slub.c:3815
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3905
__slab_alloc_node mm/slub.c:3980 [inline]
slab_alloc_node mm/slub.c:4141 [inline]
__do_kmalloc_node mm/slub.c:4282 [inline]
__kmalloc_node_noprof+0x2f0/0x510 mm/slub.c:4289
__kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:650
alloc_netdev_mqs+0xd9/0x1510 net/core/dev.c:11209
rtnl_create_link+0xc10/0xfa0 net/core/rtnetlink.c:3595
rtnl_newlink_create net/core/rtnetlink.c:3771 [inline]
__rtnl_newlink net/core/rtnetlink.c:3896 [inline]
rtnl_newlink+0x144b/0x1ce0 net/core/rtnetlink.c:4009
rtnetlink_rcv_msg+0x95e/0xea0 net/core/rtnetlink.c:6919
netlink_rcv_skb+0x16e/0x440 net/netlink/af_netlink.c:2542
netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]
netlink_unicast+0x53f/0x7f0 net/netlink/af_netlink.c:1347
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1891
page last free pid 1 tgid 1 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0x661/0x1080 mm/page_alloc.c:2657
free_contig_range+0x133/0x3f0 mm/page_alloc.c:6630
destroy_args+0x802/0xa50 mm/debug_vm_pgtable.c:1017
debug_vm_pgtable+0x168e/0x31a0 mm/debug_vm_pgtable.c:1397
do_one_initcall+0x12b/0x700 init/main.c:1266
do_initcall_level init/main.c:1328 [inline]
do_initcalls init/main.c:1344 [inline]
do_basic_setup init/main.c:1363 [inline]
kernel_init_freeable+0x5c7/0x900 init/main.c:1577
kernel_init+0x1c/0x2b0 init/main.c:1466
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Memory state around the buggy address:
ffff88805c162180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88805c162200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88805c162280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88805c162300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88805c162380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_read include/linux/instrumented.h:68 [inline]
BUG: KASAN: slab-use-after-free in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
BUG: KASAN: slab-use-after-free in netif_device_present include/linux/netdevice.h:4361 [inline]
BUG: KASAN: slab-use-after-free in __ethtool_get_link_ksettings+0xa4/0x200 net/ethtool/ioctl.c:445
Read of size 8 at addr ffff88805c1620a8 by task kworker/0:2/903
CPU: 0 UID: 0 PID: 903 Comm: kworker/0:2 Tainted: G B 6.13.0-rc2-syzkaller-00031-gf92f4749861b #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events smc_ib_port_event_work
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:489
kasan_report+0xd9/0x110 mm/kasan/report.c:602
check_region_inline mm/kasan/generic.c:183 [inline]
kasan_check_range+0xef/0x1a0 mm/kasan/generic.c:189
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
netif_device_present include/linux/netdevice.h:4361 [inline]
__ethtool_get_link_ksettings+0xa4/0x200 net/ethtool/ioctl.c:445
__ethtool_get_link_ksettings+0x148/0x200 net/ethtool/ioctl.c:449
ib_get_eth_speed+0x123/0xb50 drivers/infiniband/core/verbs.c:1996
rxe_query_port+0x72/0x200 drivers/infiniband/sw/rxe/rxe_verbs.c:55
__ib_query_port drivers/infiniband/core/device.c:2112 [inline]
ib_query_port drivers/infiniband/core/device.c:2144 [inline]
ib_query_port+0x441/0x8a0 drivers/infiniband/core/device.c:2134
smc_ib_remember_port_attr net/smc/smc_ib.c:364 [inline]
smc_ib_port_event_work+0x130/0xc00 net/smc/smc_ib.c:388
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c4/0x3a0 kernel/kthread.c:389
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Allocated by task 5830:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4283 [inline]
__kmalloc_node_noprof+0x21f/0x510 mm/slub.c:4289
__kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:650
alloc_netdev_mqs+0xd9/0x1510 net/core/dev.c:11209
rtnl_create_link+0xc10/0xfa0 net/core/rtnetlink.c:3595
rtnl_newlink_create net/core/rtnetlink.c:3771 [inline]
__rtnl_newlink net/core/rtnetlink.c:3896 [inline]
rtnl_newlink+0x144b/0x1ce0 net/core/rtnetlink.c:4009
rtnetlink_rcv_msg+0x95e/0xea0 net/core/rtnetlink.c:6919
netlink_rcv_skb+0x16e/0x440 net/netlink/af_netlink.c:2542
netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]
netlink_unicast+0x53f/0x7f0 net/netlink/af_netlink.c:1347
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1891
sock_sendmsg_nosec net/socket.c:711 [inline]
__sock_sendmsg net/socket.c:726 [inline]
__sys_sendto+0x48b/0x4f0 net/socket.c:2197
__do_sys_sendto net/socket.c:2204 [inline]
__se_sys_sendto net/socket.c:2200 [inline]
__x64_sys_sendto+0xe0/0x1c0 net/socket.c:2200
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 6967:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:582
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2338 [inline]
slab_free mm/slub.c:4598 [inline]
kfree+0x14f/0x4b0 mm/slub.c:4746
kvfree+0x47/0x50 mm/util.c:693
device_release+0xa4/0x240 drivers/base/core.c:2567
kobject_cleanup lib/kobject.c:689 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x1e7/0x5a0 lib/kobject.c:737
netdev_run_todo+0x7bc/0x12d0 net/core/dev.c:10924
default_device_exit_batch+0x86c/0xae0 net/core/dev.c:12074
ops_exit_list+0x12b/0x180 net/core/net_namespace.c:177
cleanup_net+0x5b7/0xb40 net/core/net_namespace.c:632
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c4/0x3a0 kernel/kthread.c:389
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
The buggy address belongs to the object at ffff88805c162000
which belongs to the cache kmalloc-cg-4k of size 4096
The buggy address is located 168 bytes inside of
freed 4096-byte region [ffff88805c162000, ffff88805c163000)
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5c160
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b04f500 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b04f500 dead000000000122 0000000000000000
head: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0001705801 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd60c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_RETRY_MAYFAIL|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5829, tgid 5829 (syz-executor), ts 95956398547, free_ts 31755294729
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1556
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3474
__alloc_pages_noprof+0x223/0x25b0 mm/page_alloc.c:4751
alloc_pages_mpol_noprof+0x2c9/0x610 mm/mempolicy.c:2269
alloc_slab_page mm/slub.c:2408 [inline]
allocate_slab mm/slub.c:2574 [inline]
new_slab+0x2c9/0x410 mm/slub.c:2627
___slab_alloc+0xdac/0x1870 mm/slub.c:3815
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3905
__slab_alloc_node mm/slub.c:3980 [inline]
slab_alloc_node mm/slub.c:4141 [inline]
__do_kmalloc_node mm/slub.c:4282 [inline]
__kmalloc_node_noprof+0x2f0/0x510 mm/slub.c:4289
__kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:650
alloc_netdev_mqs+0xd9/0x1510 net/core/dev.c:11209
rtnl_create_link+0xc10/0xfa0 net/core/rtnetlink.c:3595
rtnl_newlink_create net/core/rtnetlink.c:3771 [inline]
__rtnl_newlink net/core/rtnetlink.c:3896 [inline]
rtnl_newlink+0x144b/0x1ce0 net/core/rtnetlink.c:4009
rtnetlink_rcv_msg+0x95e/0xea0 net/core/rtnetlink.c:6919
netlink_rcv_skb+0x16e/0x440 net/netlink/af_netlink.c:2542
netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]
netlink_unicast+0x53f/0x7f0 net/netlink/af_netlink.c:1347
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1891
page last free pid 1 tgid 1 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0x661/0x1080 mm/page_alloc.c:2657
free_contig_range+0x133/0x3f0 mm/page_alloc.c:6630
destroy_args+0x802/0xa50 mm/debug_vm_pgtable.c:1017
debug_vm_pgtable+0x168e/0x31a0 mm/debug_vm_pgtable.c:1397
do_one_initcall+0x12b/0x700 init/main.c:1266
do_initcall_level init/main.c:1328 [inline]
do_initcalls init/main.c:1344 [inline]
do_basic_setup init/main.c:1363 [inline]
kernel_init_freeable+0x5c7/0x900 init/main.c:1577
kernel_init+0x1c/0x2b0 init/main.c:1466
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Memory state around the buggy address:
ffff88805c161f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88805c162000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88805c162080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88805c162100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88805c162180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in constant_test_bit arch/x86/include/asm/bitops.h:206 [inline]
BUG: KASAN: slab-use-after-free in arch_test_bit arch/x86/include/asm/bitops.h:238 [inline]
BUG: KASAN: slab-use-after-free in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline]
BUG: KASAN: slab-use-after-free in netif_device_present include/linux/netdevice.h:4361 [inline]
BUG: KASAN: slab-use-after-free in __ethtool_get_link_ksettings+0x1cc/0x200 net/ethtool/ioctl.c:445
Read of size 8 at addr ffff88805c1620a8 by task kworker/0:2/903
CPU: 0 UID: 0 PID: 903 Comm: kworker/0:2 Tainted: G B 6.13.0-rc2-syzkaller-00031-gf92f4749861b #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events smc_ib_port_event_work
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:489
kasan_report+0xd9/0x110 mm/kasan/report.c:602
constant_test_bit arch/x86/include/asm/bitops.h:206 [inline]
arch_test_bit arch/x86/include/asm/bitops.h:238 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline]
netif_device_present include/linux/netdevice.h:4361 [inline]
__ethtool_get_link_ksettings+0x1cc/0x200 net/ethtool/ioctl.c:445
__ethtool_get_link_ksettings+0x148/0x200 net/ethtool/ioctl.c:449
ib_get_eth_speed+0x123/0xb50 drivers/infiniband/core/verbs.c:1996
rxe_query_port+0x72/0x200 drivers/infiniband/sw/rxe/rxe_verbs.c:55
__ib_query_port drivers/infiniband/core/device.c:2112 [inline]
ib_query_port drivers/infiniband/core/device.c:2144 [inline]
ib_query_port+0x441/0x8a0 drivers/infiniband/core/device.c:2134
smc_ib_remember_port_attr net/smc/smc_ib.c:364 [inline]
smc_ib_port_event_work+0x130/0xc00 net/smc/smc_ib.c:388
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c4/0x3a0 kernel/kthread.c:389
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Allocated by task 5830:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4283 [inline]
__kmalloc_node_noprof+0x21f/0x510 mm/slub.c:4289
__kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:650
alloc_netdev_mqs+0xd9/0x1510 net/core/dev.c:11209
rtnl_create_link+0xc10/0xfa0 net/core/rtnetlink.c:3595
rtnl_newlink_create net/core/rtnetlink.c:3771 [inline]
__rtnl_newlink net/core/rtnetlink.c:3896 [inline]
rtnl_newlink+0x144b/0x1ce0 net/core/rtnetlink.c:4009
rtnetlink_rcv_msg+0x95e/0xea0 net/core/rtnetlink.c:6919
netlink_rcv_skb+0x16e/0x440 net/netlink/af_netlink.c:2542
netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]
netlink_unicast+0x53f/0x7f0 net/netlink/af_netlink.c:1347
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1891
sock_sendmsg_nosec net/socket.c:711 [inline]
__sock_sendmsg net/socket.c:726 [inline]
__sys_sendto+0x48b/0x4f0 net/socket.c:2197
__do_sys_sendto net/socket.c:2204 [inline]
__se_sys_sendto net/socket.c:2200 [inline]
__x64_sys_sendto+0xe0/0x1c0 net/socket.c:2200
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 6967:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:582
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2338 [inline]
slab_free mm/slub.c:4598 [inline]
kfree+0x14f/0x4b0 mm/slub.c:4746
kvfree+0x47/0x50 mm/util.c:693
device_release+0xa4/0x240 drivers/base/core.c:2567
kobject_cleanup lib/kobject.c:689 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x1e7/0x5a0 lib/kobject.c:737
netdev_run_todo+0x7bc/0x12d0 net/core/dev.c:10924
default_device_exit_batch+0x86c/0xae0 net/core/dev.c:12074
ops_exit_list+0x12b/0x180 net/core/net_namespace.c:177
cleanup_net+0x5b7/0xb40 net/core/net_namespace.c:632
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c4/0x3a0 kernel/kthread.c:389
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
The buggy address belongs to the object at ffff88805c162000
which belongs to the cache kmalloc-cg-4k of size 4096
The buggy address is located 168 bytes inside of
freed 4096-byte region [ffff88805c162000, ffff88805c163000)
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5c160
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b04f500 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b04f500 dead000000000122 0000000000000000
head: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0001705801 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd60c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_RETRY_MAYFAIL|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5829, tgid 5829 (syz-executor), ts 95956398547, free_ts 31755294729
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1556
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3474
__alloc_pages_noprof+0x223/0x25b0 mm/page_alloc.c:4751
alloc_pages_mpol_noprof+0x2c9/0x610 mm/mempolicy.c:2269
alloc_slab_page mm/slub.c:2408 [inline]
allocate_slab mm/slub.c:2574 [inline]
new_slab+0x2c9/0x410 mm/slub.c:2627
___slab_alloc+0xdac/0x1870 mm/slub.c:3815
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3905
__slab_alloc_node mm/slub.c:3980 [inline]
slab_alloc_node mm/slub.c:4141 [inline]
__do_kmalloc_node mm/slub.c:4282 [inline]
__kmalloc_node_noprof+0x2f0/0x510 mm/slub.c:4289
__kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:650
alloc_netdev_mqs+0xd9/0x1510 net/core/dev.c:11209
rtnl_create_link+0xc10/0xfa0 net/core/rtnetlink.c:3595
rtnl_newlink_create net/core/rtnetlink.c:3771 [inline]
__rtnl_newlink net/core/rtnetlink.c:3896 [inline]
rtnl_newlink+0x144b/0x1ce0 net/core/rtnetlink.c:4009
rtnetlink_rcv_msg+0x95e/0xea0 net/core/rtnetlink.c:6919
netlink_rcv_skb+0x16e/0x440 net/netlink/af_netlink.c:2542
netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]
netlink_unicast+0x53f/0x7f0 net/netlink/af_netlink.c:1347
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1891
page last free pid 1 tgid 1 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0x661/0x1080 mm/page_alloc.c:2657
free_contig_range+0x133/0x3f0 mm/page_alloc.c:6630
destroy_args+0x802/0xa50 mm/debug_vm_pgtable.c:1017
debug_vm_pgtable+0x168e/0x31a0 mm/debug_vm_pgtable.c:1397
do_one_initcall+0x12b/0x700 init/main.c:1266
do_initcall_level init/main.c:1328 [inline]
do_initcalls init/main.c:1344 [inline]
do_basic_setup init/main.c:1363 [inline]
kernel_init_freeable+0x5c7/0x900 init/main.c:1577
kernel_init+0x1c/0x2b0 init/main.c:1466
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Memory state around the buggy address:
ffff88805c161f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88805c162000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88805c162080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88805c162100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88805c162180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in __ethtool_get_link_ksettings+0x1e3/0x200 net/ethtool/ioctl.c:449
Read of size 8 at addr ffff88805c1622e8 by task kworker/0:2/903
CPU: 0 UID: 0 PID: 903 Comm: kworker/0:2 Tainted: G B 6.13.0-rc2-syzkaller-00031-gf92f4749861b #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events smc_ib_port_event_work
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:489
kasan_report+0xd9/0x110 mm/kasan/report.c:602
__ethtool_get_link_ksettings+0x1e3/0x200 net/ethtool/ioctl.c:449
__ethtool_get_link_ksettings+0x148/0x200 net/ethtool/ioctl.c:449
ib_get_eth_speed+0x123/0xb50 drivers/infiniband/core/verbs.c:1996
rxe_query_port+0x72/0x200 drivers/infiniband/sw/rxe/rxe_verbs.c:55
__ib_query_port drivers/infiniband/core/device.c:2112 [inline]
ib_query_port drivers/infiniband/core/device.c:2144 [inline]
ib_query_port+0x441/0x8a0 drivers/infiniband/core/device.c:2134
smc_ib_remember_port_attr net/smc/smc_ib.c:364 [inline]
smc_ib_port_event_work+0x130/0xc00 net/smc/smc_ib.c:388
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c4/0x3a0 kernel/kthread.c:389
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Allocated by task 5830:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4283 [inline]
__kmalloc_node_noprof+0x21f/0x510 mm/slub.c:4289
__kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:650
alloc_netdev_mqs+0xd9/0x1510 net/core/dev.c:11209
rtnl_create_link+0xc10/0xfa0 net/core/rtnetlink.c:3595
rtnl_newlink_create net/core/rtnetlink.c:3771 [inline]
__rtnl_newlink net/core/rtnetlink.c:3896 [inline]
rtnl_newlink+0x144b/0x1ce0 net/core/rtnetlink.c:4009
rtnetlink_rcv_msg+0x95e/0xea0 net/core/rtnetlink.c:6919
netlink_rcv_skb+0x16e/0x440 net/netlink/af_netlink.c:2542
netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]
netlink_unicast+0x53f/0x7f0 net/netlink/af_netlink.c:1347
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1891
sock_sendmsg_nosec net/socket.c:711 [inline]
__sock_sendmsg net/socket.c:726 [inline]
__sys_sendto+0x48b/0x4f0 net/socket.c:2197
__do_sys_sendto net/socket.c:2204 [inline]
__se_sys_sendto net/socket.c:2200 [inline]
__x64_sys_sendto+0xe0/0x1c0 net/socket.c:2200
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 6967:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:582
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2338 [inline]
slab_free mm/slub.c:4598 [inline]
kfree+0x14f/0x4b0 mm/slub.c:4746
kvfree+0x47/0x50 mm/util.c:693
device_release+0xa4/0x240 drivers/base/core.c:2567
kobject_cleanup lib/kobject.c:689 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x1e7/0x5a0 lib/kobject.c:737
netdev_run_todo+0x7bc/0x12d0 net/core/dev.c:10924
default_device_exit_batch+0x86c/0xae0 net/core/dev.c:12074
ops_exit_list+0x12b/0x180 net/core/net_namespace.c:177
cleanup_net+0x5b7/0xb40 net/core/net_namespace.c:632
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c4/0x3a0 kernel/kthread.c:389
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
The buggy address belongs to the object at ffff88805c162000
which belongs to the cache kmalloc-cg-4k of size 4096
The buggy address is located 744 bytes inside of
freed 4096-byte region [ffff88805c162000, ffff88805c163000)
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5c160
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b04f500 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b04f500 dead000000000122 0000000000000000
head: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0001705801 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd60c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_RETRY_MAYFAIL|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5829, tgid 5829 (syz-executor), ts 95956398547, free_ts 31755294729
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1556
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3474
__alloc_pages_noprof+0x223/0x25b0 mm/page_alloc.c:4751
alloc_pages_mpol_noprof+0x2c9/0x610 mm/mempolicy.c:2269
alloc_slab_page mm/slub.c:2408 [inline]
allocate_slab mm/slub.c:2574 [inline]
new_slab+0x2c9/0x410 mm/slub.c:2627
___slab_alloc+0xdac/0x1870 mm/slub.c:3815
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3905
__slab_alloc_node mm/slub.c:3980 [inline]
slab_alloc_node mm/slub.c:4141 [inline]
__do_kmalloc_node mm/slub.c:4282 [inline]
__kmalloc_node_noprof+0x2f0/0x510 mm/slub.c:4289
__kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:650
alloc_netdev_mqs+0xd9/0x1510 net/core/dev.c:11209
rtnl_create_link+0xc10/0xfa0 net/core/rtnetlink.c:3595
rtnl_newlink_create net/core/rtnetlink.c:3771 [inline]
__rtnl_newlink net/core/rtnetlink.c:3896 [inline]
rtnl_newlink+0x144b/0x1ce0 net/core/rtnetlink.c:4009
rtnetlink_rcv_msg+0x95e/0xea0 net/core/rtnetlink.c:6919
netlink_rcv_skb+0x16e/0x440 net/netlink/af_netlink.c:2542
netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]
netlink_unicast+0x53f/0x7f0 net/netlink/af_netlink.c:1347
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1891
page last free pid 1 tgid 1 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0x661/0x1080 mm/page_alloc.c:2657
free_contig_range+0x133/0x3f0 mm/page_alloc.c:6630
destroy_args+0x802/0xa50 mm/debug_vm_pgtable.c:1017
debug_vm_pgtable+0x168e/0x31a0 mm/debug_vm_pgtable.c:1397
do_one_initcall+0x12b/0x700 init/main.c:1266
do_initcall_level init/main.c:1328 [inline]
do_initcalls init/main.c:1344 [inline]
do_basic_setup init/main.c:1363 [inline]
kernel_init_freeable+0x5c7/0x900 init/main.c:1577
kernel_init+0x1c/0x2b0 init/main.c:1466
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Memory state around the buggy address:
ffff88805c162180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88805c162200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88805c162280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88805c162300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88805c162380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================