Date
May 12, 2025, 6:12 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.941033] ================================================================== [ 17.942105] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0 [ 17.943035] Write of size 1 at addr fff00000c64e9f00 by task kunit_try_catch/133 [ 17.943719] [ 17.944042] CPU: 1 UID: 0 PID: 133 Comm: kunit_try_catch Tainted: G B N 6.14.7-rc1 #1 [ 17.944405] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.944500] Hardware name: linux,dummy-virt (DT) [ 17.944566] Call trace: [ 17.944619] show_stack+0x20/0x38 (C) [ 17.944727] dump_stack_lvl+0x8c/0xd0 [ 17.944843] print_report+0x118/0x608 [ 17.944947] kasan_report+0xdc/0x128 [ 17.945046] __asan_report_store1_noabort+0x20/0x30 [ 17.945155] kmalloc_big_oob_right+0x2a4/0x2f0 [ 17.945255] kunit_try_run_case+0x170/0x3f0 [ 17.945356] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.945497] kthread+0x318/0x620 [ 17.945592] ret_from_fork+0x10/0x20 [ 17.945716] [ 17.950936] Allocated by task 133: [ 17.951379] kasan_save_stack+0x3c/0x68 [ 17.951952] kasan_save_track+0x20/0x40 [ 17.952351] kasan_save_alloc_info+0x40/0x58 [ 17.952806] __kasan_kmalloc+0xd4/0xd8 [ 17.953208] __kmalloc_cache_noprof+0x15c/0x3c0 [ 17.953673] kmalloc_big_oob_right+0xb8/0x2f0 [ 17.954096] kunit_try_run_case+0x170/0x3f0 [ 17.954629] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.955147] kthread+0x318/0x620 [ 17.955539] ret_from_fork+0x10/0x20 [ 17.955969] [ 17.956146] The buggy address belongs to the object at fff00000c64e8000 [ 17.956146] which belongs to the cache kmalloc-8k of size 8192 [ 17.957027] The buggy address is located 0 bytes to the right of [ 17.957027] allocated 7936-byte region [fff00000c64e8000, fff00000c64e9f00) [ 17.957835] [ 17.958565] The buggy address belongs to the physical page: [ 17.959013] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1064e8 [ 17.959672] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 17.960431] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 17.961104] page_type: f5(slab) [ 17.961439] raw: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 17.962250] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 17.962920] head: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 17.963544] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 17.964360] head: 0bfffe0000000003 ffffc1ffc3193a01 ffffffffffffffff 0000000000000000 [ 17.965076] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 17.965779] page dumped because: kasan: bad access detected [ 17.966419] [ 17.966687] Memory state around the buggy address: [ 17.967455] fff00000c64e9e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.968034] fff00000c64e9e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.968791] >fff00000c64e9f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.969476] ^ [ 17.970030] fff00000c64e9f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.970625] fff00000c64ea000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.971365] ==================================================================
[ 11.830745] ================================================================== [ 11.832181] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x318/0x370 [ 11.832886] Write of size 1 at addr ffff888102c21f00 by task kunit_try_catch/152 [ 11.833335] [ 11.833524] CPU: 1 UID: 0 PID: 152 Comm: kunit_try_catch Tainted: G B N 6.14.7-rc1 #1 [ 11.833571] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.833597] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.833646] Call Trace: [ 11.833661] <TASK> [ 11.833683] dump_stack_lvl+0x73/0xb0 [ 11.833712] print_report+0xd1/0x650 [ 11.833735] ? __virt_addr_valid+0x1db/0x2d0 [ 11.833763] ? kmalloc_big_oob_right+0x318/0x370 [ 11.833797] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.833821] ? kmalloc_big_oob_right+0x318/0x370 [ 11.833853] kasan_report+0x140/0x180 [ 11.833876] ? kmalloc_big_oob_right+0x318/0x370 [ 11.833901] __asan_report_store1_noabort+0x1b/0x30 [ 11.833924] kmalloc_big_oob_right+0x318/0x370 [ 11.833945] ? __pfx_kmalloc_big_oob_right+0x10/0x10 [ 11.833966] ? __schedule+0xce8/0x2840 [ 11.834010] ? __pfx_read_tsc+0x10/0x10 [ 11.834067] ? ktime_get_ts64+0x86/0x230 [ 11.834095] kunit_try_run_case+0x1a6/0x480 [ 11.834119] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.834139] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 11.834160] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.834183] ? __kthread_parkme+0x82/0x160 [ 11.834205] ? preempt_count_sub+0x50/0x80 [ 11.834229] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.834251] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.834276] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.834302] kthread+0x324/0x6e0 [ 11.834323] ? trace_preempt_on+0x20/0xc0 [ 11.834346] ? __pfx_kthread+0x10/0x10 [ 11.834368] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.834390] ? calculate_sigpending+0x7b/0xa0 [ 11.834411] ? __pfx_kthread+0x10/0x10 [ 11.834433] ret_from_fork+0x41/0x80 [ 11.834451] ? __pfx_kthread+0x10/0x10 [ 11.834473] ret_from_fork_asm+0x1a/0x30 [ 11.834503] </TASK> [ 11.834514] [ 11.845813] Allocated by task 152: [ 11.846174] kasan_save_stack+0x45/0x70 [ 11.846605] kasan_save_track+0x18/0x40 [ 11.846873] kasan_save_alloc_info+0x3b/0x50 [ 11.847287] __kasan_kmalloc+0xb7/0xc0 [ 11.847640] __kmalloc_cache_noprof+0x18a/0x420 [ 11.847873] kmalloc_big_oob_right+0xaa/0x370 [ 11.848033] kunit_try_run_case+0x1a6/0x480 [ 11.848230] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.848412] kthread+0x324/0x6e0 [ 11.848536] ret_from_fork+0x41/0x80 [ 11.848665] ret_from_fork_asm+0x1a/0x30 [ 11.848810] [ 11.848902] The buggy address belongs to the object at ffff888102c20000 [ 11.848902] which belongs to the cache kmalloc-8k of size 8192 [ 11.849531] The buggy address is located 0 bytes to the right of [ 11.849531] allocated 7936-byte region [ffff888102c20000, ffff888102c21f00) [ 11.849971] [ 11.850077] The buggy address belongs to the physical page: [ 11.850626] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102c20 [ 11.851429] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 11.852187] flags: 0x200000000000040(head|node=0|zone=2) [ 11.852610] page_type: f5(slab) [ 11.852742] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 11.852984] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 11.853787] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 11.854699] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 11.855478] head: 0200000000000003 ffffea00040b0801 ffffffffffffffff 0000000000000000 [ 11.855917] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 11.856556] page dumped because: kasan: bad access detected [ 11.857120] [ 11.857297] Memory state around the buggy address: [ 11.857589] ffff888102c21e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.857812] ffff888102c21e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.858132] >ffff888102c21f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.858849] ^ [ 11.859167] ffff888102c21f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.859875] ffff888102c22000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.860656] ==================================================================