Hay
Date
April 20, 2025, 11:09 p.m.

Environment
qemu-arm64
qemu-x86_64
rk3399-rock-pi-4b

[   22.738582] ==================================================================
[   22.738702] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0
[   22.738811] Write of size 1 at addr fff00000c76e1f00 by task kunit_try_catch/146
[   22.738923] 
[   22.739012] CPU: 0 UID: 0 PID: 146 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT 
[   22.739195] Tainted: [B]=BAD_PAGE, [N]=TEST
[   22.739255] Hardware name: linux,dummy-virt (DT)
[   22.739325] Call trace:
[   22.739376]  show_stack+0x20/0x38 (C)
[   22.739489]  dump_stack_lvl+0x8c/0xd0
[   22.739622]  print_report+0x118/0x608
[   22.740046]  kasan_report+0xdc/0x128
[   22.740622]  __asan_report_store1_noabort+0x20/0x30
[   22.740760]  kmalloc_big_oob_right+0x2a4/0x2f0
[   22.741132]  kunit_try_run_case+0x170/0x3f0
[   22.741357]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   22.741494]  kthread+0x328/0x630
[   22.741650]  ret_from_fork+0x10/0x20
[   22.741854] 
[   22.741914] Allocated by task 146:
[   22.742015]  kasan_save_stack+0x3c/0x68
[   22.742125]  kasan_save_track+0x20/0x40
[   22.742634]  kasan_save_alloc_info+0x40/0x58
[   22.742736]  __kasan_kmalloc+0xd4/0xd8
[   22.742845]  __kmalloc_cache_noprof+0x15c/0x3c0
[   22.743134]  kmalloc_big_oob_right+0xb8/0x2f0
[   22.743239]  kunit_try_run_case+0x170/0x3f0
[   22.743482]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   22.744068]  kthread+0x328/0x630
[   22.744534]  ret_from_fork+0x10/0x20
[   22.744749] 
[   22.744809] The buggy address belongs to the object at fff00000c76e0000
[   22.744809]  which belongs to the cache kmalloc-8k of size 8192
[   22.745214] The buggy address is located 0 bytes to the right of
[   22.745214]  allocated 7936-byte region [fff00000c76e0000, fff00000c76e1f00)
[   22.745915] 
[   22.745986] The buggy address belongs to the physical page:
[   22.746060] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1076e0
[   22.746183] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   22.746289] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   22.746406] page_type: f5(slab)
[   22.746490] raw: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000
[   22.746602] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   22.746714] head: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000
[   22.746826] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   22.749035] head: 0bfffe0000000003 ffffc1ffc31db801 00000000ffffffff 00000000ffffffff
[   22.749312] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
[   22.750202] page dumped because: kasan: bad access detected
[   22.750842] 
[   22.751587] Memory state around the buggy address:
[   22.751723]  fff00000c76e1e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   22.752193]  fff00000c76e1e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   22.752311] >fff00000c76e1f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   22.752751]                    ^
[   22.753204]  fff00000c76e1f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   22.753338]  fff00000c76e2000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   22.753429] ==================================================================

[   11.031260] ==================================================================
[   11.031841] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x316/0x370
[   11.032078] Write of size 1 at addr ffff888102c1df00 by task kunit_try_catch/164
[   11.032934] 
[   11.033210] CPU: 1 UID: 0 PID: 164 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT(voluntary) 
[   11.033256] Tainted: [B]=BAD_PAGE, [N]=TEST
[   11.033268] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   11.033287] Call Trace:
[   11.033299]  <TASK>
[   11.033315]  dump_stack_lvl+0x73/0xb0
[   11.033353]  print_report+0xd1/0x650
[   11.033376]  ? __virt_addr_valid+0x1db/0x2d0
[   11.033398]  ? kmalloc_big_oob_right+0x316/0x370
[   11.033420]  ? kasan_complete_mode_report_info+0x2a/0x200
[   11.033442]  ? kmalloc_big_oob_right+0x316/0x370
[   11.033465]  kasan_report+0x141/0x180
[   11.033487]  ? kmalloc_big_oob_right+0x316/0x370
[   11.033514]  __asan_report_store1_noabort+0x1b/0x30
[   11.033534]  kmalloc_big_oob_right+0x316/0x370
[   11.033557]  ? __pfx_kmalloc_big_oob_right+0x10/0x10
[   11.033605]  ? __schedule+0x10cc/0x2b30
[   11.033631]  ? __pfx_read_tsc+0x10/0x10
[   11.033652]  ? ktime_get_ts64+0x86/0x230
[   11.033689]  kunit_try_run_case+0x1a5/0x480
[   11.033713]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.033745]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   11.033772]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   11.033795]  ? __kthread_parkme+0x82/0x180
[   11.033816]  ? preempt_count_sub+0x50/0x80
[   11.033841]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.033863]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.033885]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   11.033907]  kthread+0x337/0x6f0
[   11.033927]  ? trace_preempt_on+0x20/0xc0
[   11.033951]  ? __pfx_kthread+0x10/0x10
[   11.033972]  ? _raw_spin_unlock_irq+0x47/0x80
[   11.033994]  ? calculate_sigpending+0x7b/0xa0
[   11.034015]  ? __pfx_kthread+0x10/0x10
[   11.034037]  ret_from_fork+0x41/0x80
[   11.034057]  ? __pfx_kthread+0x10/0x10
[   11.034078]  ret_from_fork_asm+0x1a/0x30
[   11.034125]  </TASK>
[   11.034136] 
[   11.049288] Allocated by task 164:
[   11.050237]  kasan_save_stack+0x45/0x70
[   11.050788]  kasan_save_track+0x18/0x40
[   11.051300]  kasan_save_alloc_info+0x3b/0x50
[   11.052030]  __kasan_kmalloc+0xb7/0xc0
[   11.052624]  __kmalloc_cache_noprof+0x189/0x420
[   11.053025]  kmalloc_big_oob_right+0xa9/0x370
[   11.053387]  kunit_try_run_case+0x1a5/0x480
[   11.053946]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.054692]  kthread+0x337/0x6f0
[   11.055286]  ret_from_fork+0x41/0x80
[   11.055664]  ret_from_fork_asm+0x1a/0x30
[   11.055816] 
[   11.055889] The buggy address belongs to the object at ffff888102c1c000
[   11.055889]  which belongs to the cache kmalloc-8k of size 8192
[   11.056636] The buggy address is located 0 bytes to the right of
[   11.056636]  allocated 7936-byte region [ffff888102c1c000, ffff888102c1df00)
[   11.057892] 
[   11.058065] The buggy address belongs to the physical page:
[   11.058637] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102c18
[   11.058905] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   11.059138] flags: 0x200000000000040(head|node=0|zone=2)
[   11.059687] page_type: f5(slab)
[   11.059992] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000
[   11.060919] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   11.061541] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000
[   11.061792] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   11.062021] head: 0200000000000003 ffffea00040b0601 00000000ffffffff 00000000ffffffff
[   11.062268] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
[   11.062604] page dumped because: kasan: bad access detected
[   11.063084] 
[   11.063238] Memory state around the buggy address:
[   11.063779]  ffff888102c1de00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   11.064497]  ffff888102c1de80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   11.064746] >ffff888102c1df00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.064954]                    ^
[   11.065069]  ffff888102c1df80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.065676]  ffff888102c1e000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.066309] ==================================================================

[   20.824272] ==================================================================
[   20.825454] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0
[   20.826152] Write of size 1 at addr ffff00000d77df00 by task kunit_try_catch/198
[   20.826837] 
[   20.827002] CPU: 0 UID: 0 PID: 198 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT 
[   20.827051] Tainted: [B]=BAD_PAGE, [N]=TEST
[   20.827065] Hardware name: Radxa ROCK Pi 4B (DT)
[   20.827082] Call trace:
[   20.827094]  show_stack+0x20/0x38 (C)
[   20.827128]  dump_stack_lvl+0x8c/0xd0
[   20.827159]  print_report+0x118/0x608
[   20.827189]  kasan_report+0xdc/0x128
[   20.827217]  __asan_report_store1_noabort+0x20/0x30
[   20.827251]  kmalloc_big_oob_right+0x2a4/0x2f0
[   20.827285]  kunit_try_run_case+0x170/0x3f0
[   20.827320]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   20.827358]  kthread+0x328/0x630
[   20.827392]  ret_from_fork+0x10/0x20
[   20.827425] 
[   20.833036] Allocated by task 198:
[   20.833362]  kasan_save_stack+0x3c/0x68
[   20.833735]  kasan_save_track+0x20/0x40
[   20.834107]  kasan_save_alloc_info+0x40/0x58
[   20.834519]  __kasan_kmalloc+0xd4/0xd8
[   20.834882]  __kmalloc_cache_noprof+0x15c/0x3c0
[   20.835323]  kmalloc_big_oob_right+0xb8/0x2f0
[   20.835745]  kunit_try_run_case+0x170/0x3f0
[   20.836151]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   20.836674]  kthread+0x328/0x630
[   20.836997]  ret_from_fork+0x10/0x20
[   20.837347] 
[   20.837500] The buggy address belongs to the object at ffff00000d77c000
[   20.837500]  which belongs to the cache kmalloc-8k of size 8192
[   20.838632] The buggy address is located 0 bytes to the right of
[   20.838632]  allocated 7936-byte region [ffff00000d77c000, ffff00000d77df00)
[   20.839812] 
[   20.839966] The buggy address belongs to the physical page:
[   20.840482] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xd778
[   20.841205] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   20.841910] flags: 0x3fffe0000000040(head|node=0|zone=0|lastcpupid=0x1ffff)
[   20.842562] page_type: f5(slab)
[   20.842876] raw: 03fffe0000000040 ffff000000403180 dead000000000122 0000000000000000
[   20.843591] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   20.844306] head: 03fffe0000000040 ffff000000403180 dead000000000122 0000000000000000
[   20.845029] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   20.845752] head: 03fffe0000000003 fffffdffc035de01 00000000ffffffff 00000000ffffffff
[   20.846474] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
[   20.847189] page dumped because: kasan: bad access detected
[   20.847703] 
[   20.847855] Memory state around the buggy address:
[   20.848302]  ffff00000d77de00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.848968]  ffff00000d77de80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.849633] >ffff00000d77df00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   20.850294]                    ^
[   20.850605]  ffff00000d77df80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   20.851270]  ffff00000d77e000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   20.851931] ==================================================================