Date
July 8, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.074536] ================================================================== [ 19.074733] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0 [ 19.074839] Write of size 1 at addr fff00000c64edf00 by task kunit_try_catch/144 [ 19.074942] [ 19.074982] CPU: 1 UID: 0 PID: 144 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 19.075064] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.075105] Hardware name: linux,dummy-virt (DT) [ 19.075385] Call trace: [ 19.075429] show_stack+0x20/0x38 (C) [ 19.075631] dump_stack_lvl+0x8c/0xd0 [ 19.075766] print_report+0x118/0x608 [ 19.075994] kasan_report+0xdc/0x128 [ 19.076061] __asan_report_store1_noabort+0x20/0x30 [ 19.076111] kmalloc_big_oob_right+0x2a4/0x2f0 [ 19.076168] kunit_try_run_case+0x170/0x3f0 [ 19.076215] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.076653] kthread+0x328/0x630 [ 19.076791] ret_from_fork+0x10/0x20 [ 19.076920] [ 19.076939] Allocated by task 144: [ 19.076966] kasan_save_stack+0x3c/0x68 [ 19.077246] kasan_save_track+0x20/0x40 [ 19.077498] kasan_save_alloc_info+0x40/0x58 [ 19.077682] __kasan_kmalloc+0xd4/0xd8 [ 19.077926] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.078139] kmalloc_big_oob_right+0xb8/0x2f0 [ 19.078207] kunit_try_run_case+0x170/0x3f0 [ 19.078414] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.078547] kthread+0x328/0x630 [ 19.078696] ret_from_fork+0x10/0x20 [ 19.078886] [ 19.078913] The buggy address belongs to the object at fff00000c64ec000 [ 19.078913] which belongs to the cache kmalloc-8k of size 8192 [ 19.079080] The buggy address is located 0 bytes to the right of [ 19.079080] allocated 7936-byte region [fff00000c64ec000, fff00000c64edf00) [ 19.079240] [ 19.079262] The buggy address belongs to the physical page: [ 19.079309] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1064e8 [ 19.079364] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 19.079409] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 19.079460] page_type: f5(slab) [ 19.079665] raw: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 19.079932] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 19.080088] head: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 19.080306] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 19.080518] head: 0bfffe0000000003 ffffc1ffc3193a01 00000000ffffffff 00000000ffffffff [ 19.080728] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 19.081209] page dumped because: kasan: bad access detected [ 19.081379] [ 19.081505] Memory state around the buggy address: [ 19.081539] fff00000c64ede00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.081587] fff00000c64ede80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.081818] >fff00000c64edf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.082208] ^ [ 19.082302] fff00000c64edf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.082464] fff00000c64ee000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.082523] ==================================================================
[ 11.941213] ================================================================== [ 11.942738] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x316/0x370 [ 11.943779] Write of size 1 at addr ffff888103a11f00 by task kunit_try_catch/162 [ 11.944971] [ 11.945325] CPU: 0 UID: 0 PID: 162 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 11.945373] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.945385] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.945502] Call Trace: [ 11.945519] <TASK> [ 11.945535] dump_stack_lvl+0x73/0xb0 [ 11.945567] print_report+0xd1/0x650 [ 11.945589] ? __virt_addr_valid+0x1db/0x2d0 [ 11.946188] ? kmalloc_big_oob_right+0x316/0x370 [ 11.946214] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.946238] ? kmalloc_big_oob_right+0x316/0x370 [ 11.946262] kasan_report+0x141/0x180 [ 11.946284] ? kmalloc_big_oob_right+0x316/0x370 [ 11.946312] __asan_report_store1_noabort+0x1b/0x30 [ 11.946337] kmalloc_big_oob_right+0x316/0x370 [ 11.946360] ? __pfx_kmalloc_big_oob_right+0x10/0x10 [ 11.946385] ? __pfx_kmalloc_big_oob_right+0x10/0x10 [ 11.946412] kunit_try_run_case+0x1a5/0x480 [ 11.946436] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.946458] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.946482] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.946512] ? __kthread_parkme+0x82/0x180 [ 11.946542] ? preempt_count_sub+0x50/0x80 [ 11.946566] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.946590] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.946625] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.946649] kthread+0x337/0x6f0 [ 11.946669] ? trace_preempt_on+0x20/0xc0 [ 11.946695] ? __pfx_kthread+0x10/0x10 [ 11.946716] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.946737] ? calculate_sigpending+0x7b/0xa0 [ 11.946760] ? __pfx_kthread+0x10/0x10 [ 11.946781] ret_from_fork+0x116/0x1d0 [ 11.946800] ? __pfx_kthread+0x10/0x10 [ 11.946820] ret_from_fork_asm+0x1a/0x30 [ 11.946850] </TASK> [ 11.946860] [ 11.957102] Allocated by task 162: [ 11.957331] kasan_save_stack+0x45/0x70 [ 11.957503] kasan_save_track+0x18/0x40 [ 11.957709] kasan_save_alloc_info+0x3b/0x50 [ 11.957906] __kasan_kmalloc+0xb7/0xc0 [ 11.958204] __kmalloc_cache_noprof+0x189/0x420 [ 11.958434] kmalloc_big_oob_right+0xa9/0x370 [ 11.958585] kunit_try_run_case+0x1a5/0x480 [ 11.958816] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.959193] kthread+0x337/0x6f0 [ 11.959391] ret_from_fork+0x116/0x1d0 [ 11.959584] ret_from_fork_asm+0x1a/0x30 [ 11.959873] [ 11.960070] The buggy address belongs to the object at ffff888103a10000 [ 11.960070] which belongs to the cache kmalloc-8k of size 8192 [ 11.960444] The buggy address is located 0 bytes to the right of [ 11.960444] allocated 7936-byte region [ffff888103a10000, ffff888103a11f00) [ 11.961087] [ 11.961186] The buggy address belongs to the physical page: [ 11.961442] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a10 [ 11.961914] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 11.962387] flags: 0x200000000000040(head|node=0|zone=2) [ 11.962611] page_type: f5(slab) [ 11.962850] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 11.963186] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 11.963822] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 11.964227] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 11.964643] head: 0200000000000003 ffffea00040e8401 00000000ffffffff 00000000ffffffff [ 11.965108] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 11.965445] page dumped because: kasan: bad access detected [ 11.965724] [ 11.965828] Memory state around the buggy address: [ 11.966110] ffff888103a11e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.966388] ffff888103a11e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.966847] >ffff888103a11f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.967083] ^ [ 11.967333] ffff888103a11f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.967755] ffff888103a12000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.968131] ==================================================================