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Date
July 14, 2025, 10:38 a.m.

Environment
e850-96
qemu-arm64
qemu-x86_64 

[   37.949707] ==================================================================
[   37.960547] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0
[   37.967826] Write of size 1 at addr ffff000807751f00 by task kunit_try_catch/228
[   37.975205] 
[   37.976692] CPU: 2 UID: 0 PID: 228 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6-next-20250714 #1 PREEMPT 
[   37.976750] Tainted: [B]=BAD_PAGE, [N]=TEST
[   37.976767] Hardware name: WinLink E850-96 board (DT)
[   37.976788] Call trace:
[   37.976801]  show_stack+0x20/0x38 (C)
[   37.976836]  dump_stack_lvl+0x8c/0xd0
[   37.976868]  print_report+0x118/0x5d0
[   37.976896]  kasan_report+0xdc/0x128
[   37.976922]  __asan_report_store1_noabort+0x20/0x30
[   37.976956]  kmalloc_big_oob_right+0x2a4/0x2f0
[   37.976987]  kunit_try_run_case+0x170/0x3f0
[   37.977024]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   37.977056]  kthread+0x328/0x630
[   37.977087]  ret_from_fork+0x10/0x20
[   37.977122] 
[   38.041091] Allocated by task 228:
[   38.044477]  kasan_save_stack+0x3c/0x68
[   38.048294]  kasan_save_track+0x20/0x40
[   38.052113]  kasan_save_alloc_info+0x40/0x58
[   38.056367]  __kasan_kmalloc+0xd4/0xd8
[   38.060099]  __kmalloc_cache_noprof+0x16c/0x3c0
[   38.064613]  kmalloc_big_oob_right+0xb8/0x2f0
[   38.068953]  kunit_try_run_case+0x170/0x3f0
[   38.073120]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   38.078589]  kthread+0x328/0x630
[   38.081800]  ret_from_fork+0x10/0x20
[   38.085359] 
[   38.086838] The buggy address belongs to the object at ffff000807750000
[   38.086838]  which belongs to the cache kmalloc-8k of size 8192
[   38.099338] The buggy address is located 0 bytes to the right of
[   38.099338]  allocated 7936-byte region [ffff000807750000, ffff000807751f00)
[   38.112355] 
[   38.113835] The buggy address belongs to the physical page:
[   38.119392] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x887750
[   38.127377] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   38.135013] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   38.141959] page_type: f5(slab)
[   38.145094] raw: 0bfffe0000000040 ffff000800003180 dead000000000122 0000000000000000
[   38.152814] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   38.160539] head: 0bfffe0000000040 ffff000800003180 dead000000000122 0000000000000000
[   38.168351] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   38.176164] head: 0bfffe0000000003 fffffdffe01dd401 00000000ffffffff 00000000ffffffff
[   38.183976] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
[   38.191783] page dumped because: kasan: bad access detected
[   38.197336] 
[   38.198812] Memory state around the buggy address:
[   38.203594]  ffff000807751e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   38.210795]  ffff000807751e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   38.218001] >ffff000807751f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   38.225201]                    ^
[   38.228416]  ffff000807751f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   38.235622]  ffff000807752000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   38.242824] ==================================================================
Metadata Full log Test run details 

[   29.339594] ==================================================================
[   29.339676] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0
[   29.339760] Write of size 1 at addr fff00000c659df00 by task kunit_try_catch/175
[   29.339826] 
[   29.339883] CPU: 0 UID: 0 PID: 175 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6-next-20250714 #1 PREEMPT 
[   29.340175] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.340286] Hardware name: linux,dummy-virt (DT)
[   29.340457] Call trace:
[   29.340574]  show_stack+0x20/0x38 (C)
[   29.340682]  dump_stack_lvl+0x8c/0xd0
[   29.340793]  print_report+0x118/0x5d0
[   29.340878]  kasan_report+0xdc/0x128
[   29.340918]  __asan_report_store1_noabort+0x20/0x30
[   29.340965]  kmalloc_big_oob_right+0x2a4/0x2f0
[   29.341033]  kunit_try_run_case+0x170/0x3f0
[   29.341091]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   29.341139]  kthread+0x328/0x630
[   29.341180]  ret_from_fork+0x10/0x20
[   29.341228] 
[   29.341247] Allocated by task 175:
[   29.341275]  kasan_save_stack+0x3c/0x68
[   29.341316]  kasan_save_track+0x20/0x40
[   29.341496]  kasan_save_alloc_info+0x40/0x58
[   29.341608]  __kasan_kmalloc+0xd4/0xd8
[   29.341729]  __kmalloc_cache_noprof+0x16c/0x3c0
[   29.341827]  kmalloc_big_oob_right+0xb8/0x2f0
[   29.341884]  kunit_try_run_case+0x170/0x3f0
[   29.342185]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   29.342325]  kthread+0x328/0x630
[   29.342409]  ret_from_fork+0x10/0x20
[   29.342542] 
[   29.342563] The buggy address belongs to the object at fff00000c659c000
[   29.342563]  which belongs to the cache kmalloc-8k of size 8192
[   29.342638] The buggy address is located 0 bytes to the right of
[   29.342638]  allocated 7936-byte region [fff00000c659c000, fff00000c659df00)
[   29.342722] 
[   29.342745] The buggy address belongs to the physical page:
[   29.342777] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106598
[   29.342845] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   29.342910] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   29.342980] page_type: f5(slab)
[   29.343021] raw: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000
[   29.343079] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   29.343127] head: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000
[   29.343174] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   29.343220] head: 0bfffe0000000003 ffffc1ffc3196601 00000000ffffffff 00000000ffffffff
[   29.343266] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
[   29.343304] page dumped because: kasan: bad access detected
[   29.343342] 
[   29.343360] Memory state around the buggy address:
[   29.343400]  fff00000c659de00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.343448]  fff00000c659de80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.343498] >fff00000c659df00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.343533]                    ^
[   29.343559]  fff00000c659df80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.343614]  fff00000c659e000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.343658] ==================================================================
Metadata Full log Test run details 

[   23.693626] ==================================================================
[   23.694506] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x316/0x370
[   23.695720] Write of size 1 at addr ffff888105891f00 by task kunit_try_catch/193
[   23.696310] 
[   23.696410] CPU: 0 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G    B   W        N  6.16.0-rc6-next-20250714 #1 PREEMPT(voluntary) 
[   23.696466] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST
[   23.696480] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   23.696504] Call Trace:
[   23.696516]  <TASK>
[   23.696535]  dump_stack_lvl+0x73/0xb0
[   23.696573]  print_report+0xd1/0x610
[   23.696596]  ? __virt_addr_valid+0x1db/0x2d0
[   23.696619]  ? kmalloc_big_oob_right+0x316/0x370
[   23.696641]  ? kasan_complete_mode_report_info+0x2a/0x200
[   23.696680]  ? kmalloc_big_oob_right+0x316/0x370
[   23.696702]  kasan_report+0x141/0x180
[   23.696722]  ? kmalloc_big_oob_right+0x316/0x370
[   23.696748]  __asan_report_store1_noabort+0x1b/0x30
[   23.696771]  kmalloc_big_oob_right+0x316/0x370
[   23.696809]  ? __pfx_kmalloc_big_oob_right+0x10/0x10
[   23.696831]  ? __schedule+0x10cc/0x2b60
[   23.696854]  ? __pfx_read_tsc+0x10/0x10
[   23.696876]  ? ktime_get_ts64+0x86/0x230
[   23.696902]  kunit_try_run_case+0x1a5/0x480
[   23.696925]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.696944]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   23.696978]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   23.697001]  ? __kthread_parkme+0x82/0x180
[   23.697022]  ? preempt_count_sub+0x50/0x80
[   23.697045]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.697066]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   23.697091]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   23.697115]  kthread+0x337/0x6f0
[   23.697135]  ? trace_preempt_on+0x20/0xc0
[   23.697157]  ? __pfx_kthread+0x10/0x10
[   23.697178]  ? _raw_spin_unlock_irq+0x47/0x80
[   23.697198]  ? calculate_sigpending+0x7b/0xa0
[   23.697223]  ? __pfx_kthread+0x10/0x10
[   23.697243]  ret_from_fork+0x116/0x1d0
[   23.697262]  ? __pfx_kthread+0x10/0x10
[   23.697282]  ret_from_fork_asm+0x1a/0x30
[   23.697312]  </TASK>
[   23.697323] 
[   23.706318] Allocated by task 193:
[   23.706507]  kasan_save_stack+0x45/0x70
[   23.706702]  kasan_save_track+0x18/0x40
[   23.706882]  kasan_save_alloc_info+0x3b/0x50
[   23.707089]  __kasan_kmalloc+0xb7/0xc0
[   23.707619]  __kmalloc_cache_noprof+0x189/0x420
[   23.707894]  kmalloc_big_oob_right+0xa9/0x370
[   23.708241]  kunit_try_run_case+0x1a5/0x480
[   23.708401]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   23.708622]  kthread+0x337/0x6f0
[   23.708930]  ret_from_fork+0x116/0x1d0
[   23.709119]  ret_from_fork_asm+0x1a/0x30
[   23.709292] 
[   23.709383] The buggy address belongs to the object at ffff888105890000
[   23.709383]  which belongs to the cache kmalloc-8k of size 8192
[   23.710228] The buggy address is located 0 bytes to the right of
[   23.710228]  allocated 7936-byte region [ffff888105890000, ffff888105891f00)
[   23.710904] 
[   23.711082] The buggy address belongs to the physical page:
[   23.711368] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105890
[   23.711863] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   23.712149] flags: 0x200000000000040(head|node=0|zone=2)
[   23.712431] page_type: f5(slab)
[   23.712558] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000
[   23.712926] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   23.713392] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000
[   23.713939] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   23.714388] head: 0200000000000003 ffffea0004162401 00000000ffffffff 00000000ffffffff
[   23.714913] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
[   23.715410] page dumped because: kasan: bad access detected
[   23.715590] 
[   23.715760] Memory state around the buggy address:
[   23.716196]  ffff888105891e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.716412]  ffff888105891e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.716734] >ffff888105891f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.717074]                    ^
[   23.717207]  ffff888105891f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.717862]  ffff888105892000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.718459] ==================================================================
Metadata Full log Test run details