Date
May 23, 2025, 11:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 27.626011] ================================================================== [ 27.626280] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 27.626540] Write of size 8 at addr fff00000c5a34d71 by task kunit_try_catch/178 [ 27.626915] [ 27.627037] CPU: 0 UID: 0 PID: 178 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7 #1 PREEMPT [ 27.627296] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.627391] Hardware name: linux,dummy-virt (DT) [ 27.627499] Call trace: [ 27.627567] show_stack+0x20/0x38 (C) [ 27.627798] dump_stack_lvl+0x8c/0xd0 [ 27.628383] print_report+0x118/0x608 [ 27.628764] kasan_report+0xdc/0x128 [ 27.628900] kasan_check_range+0x100/0x1a8 [ 27.629037] __asan_memset+0x34/0x78 [ 27.629168] kmalloc_oob_memset_8+0x150/0x2f8 [ 27.629309] kunit_try_run_case+0x170/0x3f0 [ 27.629468] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 27.629855] kthread+0x328/0x630 [ 27.630330] ret_from_fork+0x10/0x20 [ 27.630759] [ 27.631394] Allocated by task 178: [ 27.631518] kasan_save_stack+0x3c/0x68 [ 27.631899] kasan_save_track+0x20/0x40 [ 27.632067] kasan_save_alloc_info+0x40/0x58 [ 27.632182] __kasan_kmalloc+0xd4/0xd8 [ 27.632286] __kmalloc_cache_noprof+0x15c/0x3c0 [ 27.632394] kmalloc_oob_memset_8+0xb0/0x2f8 [ 27.632502] kunit_try_run_case+0x170/0x3f0 [ 27.632605] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 27.632731] kthread+0x328/0x630 [ 27.633294] ret_from_fork+0x10/0x20 [ 27.633536] [ 27.633642] The buggy address belongs to the object at fff00000c5a34d00 [ 27.633642] which belongs to the cache kmalloc-128 of size 128 [ 27.633925] The buggy address is located 113 bytes inside of [ 27.633925] allocated 120-byte region [fff00000c5a34d00, fff00000c5a34d78) [ 27.634109] [ 27.634228] The buggy address belongs to the physical page: [ 27.634320] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105a34 [ 27.634499] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 27.634643] page_type: f5(slab) [ 27.634763] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 27.635166] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 27.635438] page dumped because: kasan: bad access detected [ 27.635927] [ 27.636017] Memory state around the buggy address: [ 27.636257] fff00000c5a34c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.636535] fff00000c5a34c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.636685] >fff00000c5a34d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 27.636815] ^ [ 27.636936] fff00000c5a34d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.637061] fff00000c5a34e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.637586] ==================================================================
[ 12.695950] ================================================================== [ 12.696426] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 12.696779] Write of size 8 at addr ffff8881026f5271 by task kunit_try_catch/195 [ 12.697405] [ 12.697552] CPU: 0 UID: 0 PID: 195 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7 #1 PREEMPT(voluntary) [ 12.697599] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.697611] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.697632] Call Trace: [ 12.697644] <TASK> [ 12.697660] dump_stack_lvl+0x73/0xb0 [ 12.697688] print_report+0xd1/0x650 [ 12.697710] ? __virt_addr_valid+0x1db/0x2d0 [ 12.697732] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.697753] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.697775] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.697796] kasan_report+0x141/0x180 [ 12.697818] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.697845] kasan_check_range+0x10c/0x1c0 [ 12.697864] __asan_memset+0x27/0x50 [ 12.697946] kmalloc_oob_memset_8+0x166/0x330 [ 12.697973] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 12.697996] ? __schedule+0x10cc/0x2b30 [ 12.698019] ? __pfx_read_tsc+0x10/0x10 [ 12.698038] ? ktime_get_ts64+0x86/0x230 [ 12.698064] kunit_try_run_case+0x1a5/0x480 [ 12.698087] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.698108] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.698131] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.698153] ? __kthread_parkme+0x82/0x180 [ 12.698174] ? preempt_count_sub+0x50/0x80 [ 12.698200] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.698222] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.698244] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.698265] kthread+0x337/0x6f0 [ 12.698282] ? trace_preempt_on+0x20/0xc0 [ 12.698318] ? __pfx_kthread+0x10/0x10 [ 12.698336] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.698356] ? calculate_sigpending+0x7b/0xa0 [ 12.698377] ? __pfx_kthread+0x10/0x10 [ 12.698395] ret_from_fork+0x41/0x80 [ 12.698415] ? __pfx_kthread+0x10/0x10 [ 12.698432] ret_from_fork_asm+0x1a/0x30 [ 12.698463] </TASK> [ 12.698474] [ 12.705593] Allocated by task 195: [ 12.705886] kasan_save_stack+0x45/0x70 [ 12.706093] kasan_save_track+0x18/0x40 [ 12.706288] kasan_save_alloc_info+0x3b/0x50 [ 12.706510] __kasan_kmalloc+0xb7/0xc0 [ 12.706735] __kmalloc_cache_noprof+0x189/0x420 [ 12.706965] kmalloc_oob_memset_8+0xac/0x330 [ 12.707112] kunit_try_run_case+0x1a5/0x480 [ 12.707374] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.707700] kthread+0x337/0x6f0 [ 12.707831] ret_from_fork+0x41/0x80 [ 12.707965] ret_from_fork_asm+0x1a/0x30 [ 12.708162] [ 12.708257] The buggy address belongs to the object at ffff8881026f5200 [ 12.708257] which belongs to the cache kmalloc-128 of size 128 [ 12.708862] The buggy address is located 113 bytes inside of [ 12.708862] allocated 120-byte region [ffff8881026f5200, ffff8881026f5278) [ 12.709218] [ 12.709325] The buggy address belongs to the physical page: [ 12.709576] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1026f5 [ 12.709925] flags: 0x200000000000000(node=0|zone=2) [ 12.710159] page_type: f5(slab) [ 12.710452] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.710736] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.711402] page dumped because: kasan: bad access detected [ 12.711686] [ 12.711784] Memory state around the buggy address: [ 12.712700] ffff8881026f5100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.713050] ffff8881026f5180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.713369] >ffff8881026f5200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.714028] ^ [ 12.714445] ffff8881026f5280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.714748] ffff8881026f5300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.715226] ==================================================================