================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_imap.c:1359:19 index 10240 is out of range for type 'atomic_t[128]' CPU: 1 PID: 11087 Comm: syz-executor.2 Not tainted 6.3.0-rc6-syzkaller-g7920df21c1b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:348 diAlloc+0x11f8/0x1530 fs/jfs/jfs_imap.c:1359 ialloc+0x84/0x7c0 fs/jfs/jfs_inode.c:56 jfs_create+0x190/0xa1c fs/jfs/namei.c:92 lookup_open fs/namei.c:3416 [inline] open_last_lookups fs/namei.c:3484 [inline] path_openat+0xf80/0x27f8 fs/namei.c:3712 do_filp_open+0x1bc/0x3cc fs/namei.c:3742 do_sys_openat2+0x128/0x3d8 fs/open.c:1348 do_sys_open fs/open.c:1364 [inline] __do_sys_openat fs/open.c:1380 [inline] __se_sys_openat fs/open.c:1375 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1375 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 ================================================================================ ================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_imap.c:2098:2 index 10240 is out of range for type 'struct iagctl[128]' CPU: 1 PID: 11087 Comm: syz-executor.2 Not tainted 6.3.0-rc6-syzkaller-g7920df21c1b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:348 diAllocBit+0xad8/0xb74 fs/jfs/jfs_imap.c:2098 diAllocIno fs/jfs/jfs_imap.c:1837 [inline] diAllocAG+0x10fc/0x1b8c fs/jfs/jfs_imap.c:1669 diAlloc+0x360/0x1530 fs/jfs/jfs_imap.c:1583 ialloc+0x84/0x7c0 fs/jfs/jfs_inode.c:56 jfs_create+0x190/0xa1c fs/jfs/namei.c:92 lookup_open fs/namei.c:3416 [inline] open_last_lookups fs/namei.c:3484 [inline] path_openat+0xf80/0x27f8 fs/namei.c:3712 do_filp_open+0x1bc/0x3cc fs/namei.c:3742 do_sys_openat2+0x128/0x3d8 fs/open.c:1348 do_sys_open fs/open.c:1364 [inline] __do_sys_openat fs/open.c:1380 [inline] __se_sys_openat fs/open.c:1375 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1375 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 ================================================================================ ================================================================== BUG: KASAN: slab-use-after-free in diAllocBit+0x8fc/0xb74 fs/jfs/jfs_imap.c:2098 Read of size 4 at addr ffff00013174002c by task syz-executor.2/11087 CPU: 1 PID: 11087 Comm: syz-executor.2 Not tainted 6.3.0-rc6-syzkaller-g7920df21c1b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:319 [inline] print_report+0x174/0x514 mm/kasan/report.c:430 kasan_report+0xd4/0x130 mm/kasan/report.c:536 __asan_report_load4_noabort+0x2c/0x38 mm/kasan/report_generic.c:380 diAllocBit+0x8fc/0xb74 fs/jfs/jfs_imap.c:2098 diAllocIno fs/jfs/jfs_imap.c:1837 [inline] diAllocAG+0x10fc/0x1b8c fs/jfs/jfs_imap.c:1669 diAlloc+0x360/0x1530 fs/jfs/jfs_imap.c:1583 ialloc+0x84/0x7c0 fs/jfs/jfs_inode.c:56 jfs_create+0x190/0xa1c fs/jfs/namei.c:92 lookup_open fs/namei.c:3416 [inline] open_last_lookups fs/namei.c:3484 [inline] path_openat+0xf80/0x27f8 fs/namei.c:3712 do_filp_open+0x1bc/0x3cc fs/namei.c:3742 do_sys_openat2+0x128/0x3d8 fs/open.c:1348 do_sys_open fs/open.c:1364 [inline] __do_sys_openat fs/open.c:1380 [inline] __se_sys_openat fs/open.c:1375 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1375 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Allocated by task 40: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4c/0x7c mm/kasan/common.c:52 kasan_save_alloc_info+0x24/0x30 mm/kasan/generic.c:510 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0xac/0xc4 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:196 [inline] __do_kmalloc_node mm/slab_common.c:967 [inline] __kmalloc+0xd8/0x1c4 mm/slab_common.c:980 kmalloc include/linux/slab.h:584 [inline] kzalloc include/linux/slab.h:720 [inline] ieee802_11_parse_elems_full+0xf8/0x23a0 net/mac80211/util.c:1609 ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2265 [inline] ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2272 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1605 [inline] ieee80211_ibss_rx_queued_mgmt+0x394/0x2974 net/mac80211/ibss.c:1638 ieee80211_iface_process_skb net/mac80211/iface.c:1583 [inline] ieee80211_iface_work+0x5cc/0xa94 net/mac80211/iface.c:1637 process_one_work+0x788/0x12d4 kernel/workqueue.c:2390 worker_thread+0x8e0/0xfe8 kernel/workqueue.c:2537 kthread+0x24c/0x2d4 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 The buggy address belongs to the object at ffff000131740000 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 44 bytes inside of freed 1024-byte region [ffff000131740000, ffff000131740400) The buggy address belongs to the physical page: page:000000008fbde585 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff000131740000 pfn:0x171740 head:000000008fbde585 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 ffff0000c0002780 fffffc0003648a10 fffffc0004bf0a10 raw: ffff000131740000 0000000000100009 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff00013173ff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff00013173ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff000131740000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff000131740080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff000131740100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================