"syz-executor.2" (10939) uses obsolete ecb(arc4) skcipher ================================================================== BUG: KASAN: slab-out-of-bounds in arc4_crypt+0x31c/0x4e0 lib/crypto/arc4.c:46 Read of size 4 at addr ffff8880801d56e0 by task syz-executor.2/10939 CPU: 0 PID: 10939 Comm: syz-executor.2 Not tainted 6.7.0-rc6-next-20231222-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:377 [inline] print_report+0xc3/0x620 mm/kasan/report.c:488 kasan_report+0xd9/0x110 mm/kasan/report.c:601 arc4_crypt+0x31c/0x4e0 lib/crypto/arc4.c:46 crypto_arc4_crypt+0x61/0x70 crypto/arc4.c:37 crypto_lskcipher_crypt_sg+0x28c/0x460 crypto/lskcipher.c:229 crypto_skcipher_decrypt+0xda/0x160 crypto/skcipher.c:693 _skcipher_recvmsg crypto/algif_skcipher.c:199 [inline] skcipher_recvmsg+0xc2b/0x1040 crypto/algif_skcipher.c:221 sock_recvmsg_nosec net/socket.c:1044 [inline] sock_recvmsg+0xe2/0x170 net/socket.c:1066 ____sys_recvmsg+0x21f/0x5c0 net/socket.c:2801 ___sys_recvmsg+0x115/0x1a0 net/socket.c:2843 do_recvmmsg+0x2af/0x740 net/socket.c:2937 __sys_recvmmsg net/socket.c:3016 [inline] __do_sys_recvmmsg net/socket.c:3039 [inline] __se_sys_recvmmsg net/socket.c:3032 [inline] __x64_sys_recvmmsg+0x235/0x290 net/socket.c:3032 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x62/0x6a RIP: 0033:0x7fbc1107cce9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fbc11cfd0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007fbc1119bf80 RCX: 00007fbc1107cce9 RDX: 0000000000000001 RSI: 00000000200015c0 RDI: 0000000000000004 RBP: 00007fbc110c947a R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000006b R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fbc1119bf80 R15: 00007ffec34136e8 Allocated by task 160: kasan_save_stack+0x33/0x50 mm/kasan/common.c:47 kasan_set_track+0x24/0x30 mm/kasan/common.c:61 unpoison_slab_object mm/kasan/common.c:282 [inline] __kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:308 kasan_slab_alloc include/linux/kasan.h:200 [inline] slab_post_alloc_hook mm/slub.c:3817 [inline] slab_alloc_node mm/slub.c:3864 [inline] kmem_cache_alloc+0x136/0x320 mm/slub.c:3871 kmem_cache_zalloc include/linux/slab.h:701 [inline] __kernfs_new_node+0xd3/0x890 fs/kernfs/dir.c:615 kernfs_new_node+0x18c/0x240 fs/kernfs/dir.c:691 __kernfs_create_file+0x53/0x340 fs/kernfs/file.c:1025 sysfs_add_file_mode_ns+0x1ff/0x3b0 fs/sysfs/file.c:307 create_files fs/sysfs/group.c:64 [inline] internal_create_group+0x31c/0xb50 fs/sysfs/group.c:152 hugetlb_sysfs_add_hstate+0x80/0x270 mm/hugetlb.c:4296 hugetlb_sysfs_init mm/hugetlb.c:4479 [inline] hugetlb_init+0xda7/0x16c0 mm/hugetlb.c:4550 do_one_initcall+0x128/0x680 init/main.c:1237 do_initcall_level init/main.c:1299 [inline] do_initcalls init/main.c:1315 [inline] do_basic_setup init/main.c:1334 [inline] kernel_init_freeable+0x692/0xc30 init/main.c:1554 kernel_init+0x1c/0x2a0 init/main.c:1444 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Last potentially related work creation: set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x2d0/0x350 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0xa19/0x3740 mm/page_alloc.c:3348 __alloc_pages+0x22e/0x2410 mm/page_alloc.c:4604 alloc_pages_mpol+0x258/0x5f0 mm/mempolicy.c:2133 vm_area_alloc_pages mm/vmalloc.c:3063 [inline] __vmalloc_area_node mm/vmalloc.c:3139 [inline] __vmalloc_node_range+0xa6b/0x1530 mm/vmalloc.c:3320 vmalloc_huge+0x70/0x90 mm/vmalloc.c:3437 alloc_large_system_hash+0x278/0x640 mm/mm_init.c:2523 inode_init+0xa5/0xd0 fs/inode.c:2296 vfs_caches_init+0x102/0x130 fs/dcache.c:3180 start_kernel+0x362/0x480 init/main.c:1057 x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:555 x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:536 secondary_startup_64_no_verify+0x170/0x17b Second to last potentially related work creation: kasan_save_stack+0x33/0x50 mm/kasan/common.c:47 kasan_set_track+0x24/0x30 mm/kasan/common.c:61 unpoison_slab_object mm/kasan/common.c:282 [inline] __kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:308 kasan_slab_alloc include/linux/kasan.h:200 [inline] slab_post_alloc_hook mm/slub.c:3817 [inline] slab_alloc_node mm/slub.c:3864 [inline] kmem_cache_alloc+0x136/0x320 mm/slub.c:3871 kmem_cache_zalloc include/linux/slab.h:701 [inline] lsm_inode_alloc security/security.c:669 [inline] security_inode_alloc+0x38/0x180 security/security.c:1578 inode_init_always+0xc2f/0xf50 fs/inode.c:231 alloc_inode+0x7a/0x220 fs/inode.c:267 new_inode_pseudo fs/inode.c:1005 [inline] new_inode+0x22/0x260 fs/inode.c:1031 debugfs_get_inode fs/debugfs/inode.c:72 [inline] debugfs_create_dir+0xdd/0x5b0 fs/debugfs/inode.c:608 rate_control_add_debugfs net/mac80211/rate.h:78 [inline] ieee80211_register_hw+0x25c6/0x4290 net/mac80211/main.c:1406 mac80211_hwsim_new_radio+0x2541/0x4d50 drivers/net/wireless/virtual/mac80211_hwsim.c:5329 hwsim_new_radio_nl+0xaf9/0x1240 drivers/net/wireless/virtual/mac80211_hwsim.c:6010 genl_family_rcv_msg_doit+0x1fc/0x2e0 net/netlink/genetlink.c:1113 genl_family_rcv_msg net/netlink/genetlink.c:1193 [inline] genl_rcv_msg+0x561/0x800 net/netlink/genetlink.c:1208 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2543 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1217 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline] netlink_unicast+0x53b/0x810 net/netlink/af_netlink.c:1367 netlink_sendmsg+0x8b4/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xd5/0x180 net/socket.c:745 __sys_sendto+0x225/0x310 net/socket.c:2189 __do_sys_sendto net/socket.c:2201 [inline] __se_sys_sendto net/socket.c:2197 [inline] __x64_sys_sendto+0xe0/0x1b0 net/socket.c:2197 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x62/0x6a The buggy address belongs to the object at ffff8880801d5000 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 1024 bytes to the right of allocated 736-byte region [ffff8880801d5000, ffff8880801d52e0) The buggy address belongs to the physical page: page:ffffea0002007400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x801d0 head:ffffea0002007400 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000840 ffff888013041dc0 0000000000000000 dead000000000001 raw: 0000000000000000 0000000080100010 00000001ffffffff 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5102, tgid 5102 (syz-executor.3), ts 370594645261, free_ts 0 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x2d0/0x350 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0xa19/0x3740 mm/page_alloc.c:3348 __alloc_pages+0x22e/0x2410 mm/page_alloc.c:4604 alloc_pages_mpol+0x258/0x5f0 mm/mempolicy.c:2133 alloc_slab_page mm/slub.c:2191 [inline] allocate_slab mm/slub.c:2358 [inline] new_slab+0x283/0x3c0 mm/slub.c:2411 ___slab_alloc+0x4ab/0x1990 mm/slub.c:3544 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3629 __slab_alloc_node mm/slub.c:3682 [inline] slab_alloc_node mm/slub.c:3854 [inline] __do_kmalloc_node mm/slub.c:3984 [inline] __kmalloc_node+0x36e/0x480 mm/slub.c:3992 kmalloc_node include/linux/slab.h:610 [inline] kzalloc_node include/linux/slab.h:722 [inline] qdisc_alloc+0xb3/0xa90 net/sched/sch_generic.c:940 qdisc_create_dflt+0x73/0x400 net/sched/sch_generic.c:998 attach_one_default_qdisc net/sched/sch_generic.c:1161 [inline] netdev_for_each_tx_queue include/linux/netdevice.h:2578 [inline] attach_default_qdiscs net/sched/sch_generic.c:1179 [inline] dev_activate+0x663/0x1300 net/sched/sch_generic.c:1238 __dev_open+0x38c/0x4e0 net/core/dev.c:1455 dev_open net/core/dev.c:1482 [inline] dev_open+0xec/0x150 net/core/dev.c:1475 bond_enslave+0xa01/0x5d90 drivers/net/bonding/bond_main.c:2010 do_set_master+0x1b5/0x220 net/core/rtnetlink.c:2704 do_setlink+0xa4a/0x4090 net/core/rtnetlink.c:2903 page_owner free stack trace missing Memory state around the buggy address: ffff8880801d5580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880801d5600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8880801d5680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8880801d5700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880801d5780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================