"syz-executor.0" (5493) uses obsolete ecb(arc4) skcipher req: ffff8880798ffa90, _skcipher_recvmsg r: ffff8880798ffa90, ivs: ffff8880798ffae0, v: 0, s: 0, ri: 0000000000000010, wi: 0000000000000000, f: 1536, wnb: 0, crypto_lskcipher_crypt_sg ivs: ffff8880798ffae0, v: 0, s: 0, ri: 0000000000000010, wi: 0000000000000010, f: 1536, wnb: 2, crypto_lskcipher_crypt_sg ffff8880798ffae0, flags: 514, ctx: ffff88807b10a020, crypto_arc4_crypt ================================================================== BUG: KASAN: slab-out-of-bounds in arc4_crypt+0x31c/0x4e0 lib/crypto/arc4.c:46 Read of size 4 at addr ffff8880798ffee0 by task syz-executor.0/5493 CPU: 1 PID: 5493 Comm: syz-executor.0 Not tainted 6.7.0-rc5-next-20231215-syzkaller-dirty #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+0x7f/0x90 crypto/arc4.c:38 crypto_lskcipher_crypt_sg+0x41f/0x680 crypto/lskcipher.c:236 crypto_skcipher_decrypt+0xda/0x160 crypto/skcipher.c:693 _skcipher_recvmsg crypto/algif_skcipher.c:200 [inline] skcipher_recvmsg+0xc41/0x1050 crypto/algif_skcipher.c:222 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 __sys_recvmsg+0x114/0x1e0 net/socket.c:2873 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: 0033:0x7f34dc47cba9 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:00007f34dd1060c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002f RAX: ffffffffffffffda RBX: 00007f34dc59bf80 RCX: 00007f34dc47cba9 RDX: 0000000000000000 RSI: 00000000200005c0 RDI: 0000000000000004 RBP: 00007f34dc4c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f34dc59bf80 R15: 00007ffcf6c49838 Allocated by task 78: kasan_save_stack+0x33/0x50 mm/kasan/common.c:47 kasan_set_track+0x24/0x30 mm/kasan/common.c:61 __kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:188 [inline] slab_post_alloc_hook mm/slub.c:3817 [inline] slab_alloc_node mm/slub.c:3864 [inline] kmem_cache_alloc_lru+0x142/0x6f0 mm/slub.c:3883 __d_alloc+0x32/0xac0 fs/dcache.c:1769 d_alloc+0x4e/0x220 fs/dcache.c:1849 d_alloc_parallel+0xe9/0x12d0 fs/dcache.c:2638 __lookup_slow+0x194/0x450 fs/namei.c:1678 lookup_one_len+0x17d/0x1b0 fs/namei.c:2755 securityfs_create_dentry+0xe3/0x4c0 security/inode.c:131 lockdown_secfs_init+0x29/0x60 security/lockdown/lockdown.c:159 do_one_initcall+0x128/0x680 init/main.c:1236 do_initcall_level init/main.c:1298 [inline] do_initcalls init/main.c:1314 [inline] do_basic_setup init/main.c:1333 [inline] kernel_init_freeable+0x692/0xc30 init/main.c:1551 kernel_init+0x1c/0x2a0 init/main.c:1441 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:1540 prep_new_page mm/page_alloc.c:1547 [inline] get_page_from_freelist+0xa19/0x3740 mm/page_alloc.c:3355 __alloc_pages+0x22e/0x2410 mm/page_alloc.c:4611 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] kmalloc_trace+0x2ff/0x330 mm/slub.c:4011 kmalloc include/linux/slab.h:590 [inline] kzalloc include/linux/slab.h:711 [inline] acpi_ec_alloc+0x3c/0x380 drivers/acpi/ec.c:1374 acpi_ec_dsdt_probe+0x26/0x160 drivers/acpi/ec.c:1761 acpi_bus_init drivers/acpi/bus.c:1372 [inline] acpi_init+0x2c5/0xb70 drivers/acpi/bus.c:1430 do_one_initcall+0x128/0x680 init/main.c:1236 do_initcall_level init/main.c:1298 [inline] do_initcalls init/main.c:1314 [inline] do_basic_setup init/main.c:1333 [inline] kernel_init_freeable+0x692/0xc30 init/main.c:1551 kernel_init+0x1c/0x2a0 init/main.c:1441 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 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 __kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:188 [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] acpi_os_acquire_object include/acpi/platform/aclinuxex.h:67 [inline] acpi_ut_allocate_object_desc_dbg drivers/acpi/acpica/utobject.c:359 [inline] acpi_ut_create_internal_object_dbg+0x7b/0x400 drivers/acpi/acpica/utobject.c:69 acpi_ex_create_method+0x35/0x2c0 drivers/acpi/acpica/excreate.c:421 acpi_ds_load2_end_op+0xd85/0x1070 drivers/acpi/acpica/dswload2.c:668 acpi_ds_exec_end_op+0x513/0x1460 drivers/acpi/acpica/dswexec.c:638 acpi_ps_parse_loop+0x429/0x1ce0 drivers/acpi/acpica/psloop.c:525 acpi_ps_parse_aml+0x3c1/0xca0 drivers/acpi/acpica/psparse.c:475 acpi_ps_execute_table+0x37b/0x4c0 drivers/acpi/acpica/psxface.c:295 acpi_ns_execute_table+0x3ee/0x550 drivers/acpi/acpica/nsparse.c:116 acpi_ns_load_table+0x5b/0x130 drivers/acpi/acpica/nsload.c:71 acpi_tb_load_namespace+0x435/0x700 drivers/acpi/acpica/tbxfload.c:186 acpi_load_tables+0x2c/0x110 drivers/acpi/acpica/tbxfload.c:59 acpi_bus_init drivers/acpi/bus.c:1321 [inline] acpi_init+0x123/0xb70 drivers/acpi/bus.c:1430 do_one_initcall+0x128/0x680 init/main.c:1236 do_initcall_level init/main.c:1298 [inline] do_initcalls init/main.c:1314 [inline] do_basic_setup init/main.c:1333 [inline] kernel_init_freeable+0x692/0xc30 init/main.c:1551 kernel_init+0x1c/0x2a0 init/main.c:1441 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 The buggy address belongs to the object at ffff8880798ff800 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 [ffff8880798ff800, ffff8880798ffae0) The buggy address belongs to the physical page: page:ffffea0001e63e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x798f8 head:ffffea0001e63e00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000840 ffff888013041dc0 dead000000000100 dead000000000122 raw: 0000000000000000 0000000000100010 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 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 4738, tgid 4738 (dhcpcd-run-hook), ts 46995283544, free_ts 46977104435 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x2d0/0x350 mm/page_alloc.c:1540 prep_new_page mm/page_alloc.c:1547 [inline] get_page_from_freelist+0xa19/0x3740 mm/page_alloc.c:3355 __alloc_pages+0x22e/0x2410 mm/page_alloc.c:4611 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+0x3b4/0x440 mm/slub.c:3998 kmalloc include/linux/slab.h:594 [inline] kzalloc include/linux/slab.h:711 [inline] tomoyo_init_log+0x142a/0x2100 security/tomoyo/audit.c:275 tomoyo_supervisor+0x30c/0xea0 security/tomoyo/common.c:2089 tomoyo_audit_env_log security/tomoyo/environ.c:36 [inline] tomoyo_env_perm+0x18f/0x200 security/tomoyo/environ.c:63 tomoyo_environ security/tomoyo/domain.c:672 [inline] tomoyo_find_next_domain+0xef5/0x2020 security/tomoyo/domain.c:878 tomoyo_bprm_check_security security/tomoyo/tomoyo.c:102 [inline] tomoyo_bprm_check_security+0x12a/0x1d0 security/tomoyo/tomoyo.c:92 security_bprm_check+0x6a/0xe0 security/security.c:1187 search_binary_handler fs/exec.c:1724 [inline] exec_binprm fs/exec.c:1778 [inline] bprm_execve fs/exec.c:1853 [inline] bprm_execve+0x730/0x1a80 fs/exec.c:1809 do_execveat_common.isra.0+0x679/0x8e0 fs/exec.c:1974 page last free pid 4737 tgid 4737 stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1140 [inline] free_unref_page_prepare+0x51f/0xb10 mm/page_alloc.c:2390 free_unref_page+0x33/0x3b0 mm/page_alloc.c:2530 __put_partials+0x14c/0x160 mm/slub.c:2926 qlink_free mm/kasan/quarantine.c:178 [inline] qlist_free_all+0xc1/0x1e0 mm/kasan/quarantine.c:194 kasan_quarantine_reduce+0x18e/0x1d0 mm/kasan/quarantine.c:301 __kasan_slab_alloc+0x65/0x90 mm/kasan/common.c:306 kasan_slab_alloc include/linux/kasan.h:188 [inline] slab_post_alloc_hook mm/slub.c:3817 [inline] slab_alloc_node mm/slub.c:3864 [inline] kmalloc_trace+0x147/0x330 mm/slub.c:4011 kmalloc include/linux/slab.h:590 [inline] tomoyo_print_header security/tomoyo/audit.c:156 [inline] tomoyo_init_log+0x19f/0x2100 security/tomoyo/audit.c:255 tomoyo_supervisor+0x30c/0xea0 security/tomoyo/common.c:2089 tomoyo_audit_path_log security/tomoyo/file.c:168 [inline] tomoyo_path_permission security/tomoyo/file.c:587 [inline] tomoyo_path_permission+0x270/0x3b0 security/tomoyo/file.c:573 tomoyo_check_open_permission+0x373/0x3b0 security/tomoyo/file.c:777 tomoyo_file_open security/tomoyo/tomoyo.c:333 [inline] tomoyo_file_open+0xa7/0xd0 security/tomoyo/tomoyo.c:328 security_file_open+0x75/0x620 security/security.c:2914 do_dentry_open+0x583/0x18c0 fs/open.c:940 do_open fs/namei.c:3631 [inline] path_openat+0x1df1/0x2990 fs/namei.c:3788 do_filp_open+0x1dc/0x430 fs/namei.c:3815 Memory state around the buggy address: ffff8880798ffd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880798ffe00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8880798ffe80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8880798fff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880798fff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc 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