Date
May 15, 2025, 10:38 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.755614] ================================================================== [ 20.756385] BUG: KASAN: slab-out-of-bounds in copy_to_kernel_nofault+0x204/0x250 [ 20.756475] Read of size 8 at addr fff00000c1729978 by task kunit_try_catch/281 [ 20.756670] [ 20.756708] CPU: 0 UID: 0 PID: 281 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT [ 20.756798] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.756828] Hardware name: linux,dummy-virt (DT) [ 20.756870] Call trace: [ 20.756896] show_stack+0x20/0x38 (C) [ 20.757274] dump_stack_lvl+0x8c/0xd0 [ 20.757338] print_report+0x118/0x608 [ 20.757389] kasan_report+0xdc/0x128 [ 20.757802] __asan_report_load8_noabort+0x20/0x30 [ 20.757870] copy_to_kernel_nofault+0x204/0x250 [ 20.758062] copy_to_kernel_nofault_oob+0x158/0x418 [ 20.758193] kunit_try_run_case+0x170/0x3f0 [ 20.758244] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.758297] kthread+0x328/0x630 [ 20.758345] ret_from_fork+0x10/0x20 [ 20.758397] [ 20.758698] Allocated by task 281: [ 20.758783] kasan_save_stack+0x3c/0x68 [ 20.758895] kasan_save_track+0x20/0x40 [ 20.758935] kasan_save_alloc_info+0x40/0x58 [ 20.758977] __kasan_kmalloc+0xd4/0xd8 [ 20.759014] __kmalloc_cache_noprof+0x15c/0x3c0 [ 20.759057] copy_to_kernel_nofault_oob+0xc8/0x418 [ 20.759097] kunit_try_run_case+0x170/0x3f0 [ 20.759136] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.759190] kthread+0x328/0x630 [ 20.759227] ret_from_fork+0x10/0x20 [ 20.759264] [ 20.759289] The buggy address belongs to the object at fff00000c1729900 [ 20.759289] which belongs to the cache kmalloc-128 of size 128 [ 20.759373] The buggy address is located 0 bytes to the right of [ 20.759373] allocated 120-byte region [fff00000c1729900, fff00000c1729978) [ 20.759549] [ 20.759622] The buggy address belongs to the physical page: [ 20.759719] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101729 [ 20.759896] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.760138] page_type: f5(slab) [ 20.760203] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 20.760255] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 20.760297] page dumped because: kasan: bad access detected [ 20.760332] [ 20.760354] Memory state around the buggy address: [ 20.760390] fff00000c1729800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 20.761174] fff00000c1729880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.761251] >fff00000c1729900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 20.761293] ^ [ 20.761711] fff00000c1729980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.761815] fff00000c1729a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.761857] ================================================================== [ 20.762782] ================================================================== [ 20.762874] BUG: KASAN: slab-out-of-bounds in copy_to_kernel_nofault+0x8c/0x250 [ 20.763060] Write of size 8 at addr fff00000c1729978 by task kunit_try_catch/281 [ 20.763209] [ 20.763241] CPU: 0 UID: 0 PID: 281 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT [ 20.763328] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.763357] Hardware name: linux,dummy-virt (DT) [ 20.763389] Call trace: [ 20.763423] show_stack+0x20/0x38 (C) [ 20.763474] dump_stack_lvl+0x8c/0xd0 [ 20.763780] print_report+0x118/0x608 [ 20.763973] kasan_report+0xdc/0x128 [ 20.764023] kasan_check_range+0x100/0x1a8 [ 20.764229] __kasan_check_write+0x20/0x30 [ 20.764418] copy_to_kernel_nofault+0x8c/0x250 [ 20.764739] copy_to_kernel_nofault_oob+0x1bc/0x418 [ 20.764848] kunit_try_run_case+0x170/0x3f0 [ 20.764931] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.764986] kthread+0x328/0x630 [ 20.765035] ret_from_fork+0x10/0x20 [ 20.765084] [ 20.765112] Allocated by task 281: [ 20.765262] kasan_save_stack+0x3c/0x68 [ 20.765304] kasan_save_track+0x20/0x40 [ 20.765503] kasan_save_alloc_info+0x40/0x58 [ 20.765695] __kasan_kmalloc+0xd4/0xd8 [ 20.765931] __kmalloc_cache_noprof+0x15c/0x3c0 [ 20.766060] copy_to_kernel_nofault_oob+0xc8/0x418 [ 20.766118] kunit_try_run_case+0x170/0x3f0 [ 20.766175] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.766220] kthread+0x328/0x630 [ 20.766269] ret_from_fork+0x10/0x20 [ 20.766308] [ 20.766423] The buggy address belongs to the object at fff00000c1729900 [ 20.766423] which belongs to the cache kmalloc-128 of size 128 [ 20.766688] The buggy address is located 0 bytes to the right of [ 20.766688] allocated 120-byte region [fff00000c1729900, fff00000c1729978) [ 20.766766] [ 20.766788] The buggy address belongs to the physical page: [ 20.766824] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101729 [ 20.766879] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.767484] page_type: f5(slab) [ 20.767577] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 20.767631] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 20.767847] page dumped because: kasan: bad access detected [ 20.768002] [ 20.768123] Memory state around the buggy address: [ 20.768176] fff00000c1729800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 20.768283] fff00000c1729880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.768439] >fff00000c1729900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 20.768483] ^ [ 20.768526] fff00000c1729980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.769055] fff00000c1729a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.769168] ==================================================================
[ 17.913727] ================================================================== [ 17.914147] BUG: KASAN: slab-out-of-bounds in copy_to_kernel_nofault+0x225/0x260 [ 17.914614] Read of size 8 at addr ffff888102b5b778 by task kunit_try_catch/299 [ 17.915119] [ 17.915263] CPU: 0 UID: 0 PID: 299 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT(voluntary) [ 17.915325] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.915339] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.915365] Call Trace: [ 17.915383] <TASK> [ 17.915406] dump_stack_lvl+0x73/0xb0 [ 17.915441] print_report+0xd1/0x650 [ 17.915604] ? __virt_addr_valid+0x1db/0x2d0 [ 17.915663] ? copy_to_kernel_nofault+0x225/0x260 [ 17.915691] ? kasan_complete_mode_report_info+0x2a/0x200 [ 17.915755] ? copy_to_kernel_nofault+0x225/0x260 [ 17.915785] kasan_report+0x141/0x180 [ 17.915810] ? copy_to_kernel_nofault+0x225/0x260 [ 17.915850] __asan_report_load8_noabort+0x18/0x20 [ 17.915873] copy_to_kernel_nofault+0x225/0x260 [ 17.915899] copy_to_kernel_nofault_oob+0x1ed/0x560 [ 17.915925] ? __pfx_copy_to_kernel_nofault_oob+0x10/0x10 [ 17.915949] ? finish_task_switch.isra.0+0x153/0x700 [ 17.915973] ? __schedule+0x10cc/0x2b60 [ 17.915996] ? trace_hardirqs_on+0x37/0xe0 [ 17.916028] ? __pfx_read_tsc+0x10/0x10 [ 17.916051] ? ktime_get_ts64+0x86/0x230 [ 17.916077] kunit_try_run_case+0x1a5/0x480 [ 17.916105] ? __pfx_kunit_try_run_case+0x10/0x10 [ 17.916127] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 17.916151] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 17.916173] ? __kthread_parkme+0x82/0x180 [ 17.916194] ? preempt_count_sub+0x50/0x80 [ 17.916217] ? __pfx_kunit_try_run_case+0x10/0x10 [ 17.916262] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.916286] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 17.916309] kthread+0x337/0x6f0 [ 17.916328] ? trace_preempt_on+0x20/0xc0 [ 17.916351] ? __pfx_kthread+0x10/0x10 [ 17.916373] ? _raw_spin_unlock_irq+0x47/0x80 [ 17.916394] ? calculate_sigpending+0x7b/0xa0 [ 17.916421] ? __pfx_kthread+0x10/0x10 [ 17.916443] ret_from_fork+0x116/0x1d0 [ 17.916463] ? __pfx_kthread+0x10/0x10 [ 17.916484] ret_from_fork_asm+0x1a/0x30 [ 17.916520] </TASK> [ 17.916535] [ 17.924006] Allocated by task 299: [ 17.924202] kasan_save_stack+0x45/0x70 [ 17.924403] kasan_save_track+0x18/0x40 [ 17.924877] kasan_save_alloc_info+0x3b/0x50 [ 17.925007] __kasan_kmalloc+0xb7/0xc0 [ 17.925290] __kmalloc_cache_noprof+0x189/0x420 [ 17.925435] copy_to_kernel_nofault_oob+0x12f/0x560 [ 17.925696] kunit_try_run_case+0x1a5/0x480 [ 17.925850] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.926043] kthread+0x337/0x6f0 [ 17.926199] ret_from_fork+0x116/0x1d0 [ 17.926340] ret_from_fork_asm+0x1a/0x30 [ 17.926570] [ 17.926630] The buggy address belongs to the object at ffff888102b5b700 [ 17.926630] which belongs to the cache kmalloc-128 of size 128 [ 17.927032] The buggy address is located 0 bytes to the right of [ 17.927032] allocated 120-byte region [ffff888102b5b700, ffff888102b5b778) [ 17.927793] [ 17.927919] The buggy address belongs to the physical page: [ 17.928093] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b5b [ 17.928373] flags: 0x200000000000000(node=0|zone=2) [ 17.928573] page_type: f5(slab) [ 17.928770] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 17.928998] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.929244] page dumped because: kasan: bad access detected [ 17.929350] [ 17.929527] Memory state around the buggy address: [ 17.929744] ffff888102b5b600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.929999] ffff888102b5b680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.930132] >ffff888102b5b700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 17.930426] ^ [ 17.930942] ffff888102b5b780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.931174] ffff888102b5b800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.931365] ================================================================== [ 17.932081] ================================================================== [ 17.932622] BUG: KASAN: slab-out-of-bounds in copy_to_kernel_nofault+0x99/0x260 [ 17.932904] Write of size 8 at addr ffff888102b5b778 by task kunit_try_catch/299 [ 17.933064] [ 17.933145] CPU: 0 UID: 0 PID: 299 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT(voluntary) [ 17.933204] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.933218] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.933253] Call Trace: [ 17.933269] <TASK> [ 17.933292] dump_stack_lvl+0x73/0xb0 [ 17.933325] print_report+0xd1/0x650 [ 17.933351] ? __virt_addr_valid+0x1db/0x2d0 [ 17.933378] ? copy_to_kernel_nofault+0x99/0x260 [ 17.933402] ? kasan_complete_mode_report_info+0x2a/0x200 [ 17.933427] ? copy_to_kernel_nofault+0x99/0x260 [ 17.933533] kasan_report+0x141/0x180 [ 17.933564] ? copy_to_kernel_nofault+0x99/0x260 [ 17.933595] kasan_check_range+0x10c/0x1c0 [ 17.933621] __kasan_check_write+0x18/0x20 [ 17.933642] copy_to_kernel_nofault+0x99/0x260 [ 17.933669] copy_to_kernel_nofault_oob+0x288/0x560 [ 17.933694] ? __pfx_copy_to_kernel_nofault_oob+0x10/0x10 [ 17.933719] ? finish_task_switch.isra.0+0x153/0x700 [ 17.933745] ? __schedule+0x10cc/0x2b60 [ 17.933770] ? trace_hardirqs_on+0x37/0xe0 [ 17.933803] ? __pfx_read_tsc+0x10/0x10 [ 17.933825] ? ktime_get_ts64+0x86/0x230 [ 17.933851] kunit_try_run_case+0x1a5/0x480 [ 17.933878] ? __pfx_kunit_try_run_case+0x10/0x10 [ 17.933900] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 17.933925] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 17.933947] ? __kthread_parkme+0x82/0x180 [ 17.933969] ? preempt_count_sub+0x50/0x80 [ 17.933994] ? __pfx_kunit_try_run_case+0x10/0x10 [ 17.934019] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.934042] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 17.934065] kthread+0x337/0x6f0 [ 17.934085] ? trace_preempt_on+0x20/0xc0 [ 17.934108] ? __pfx_kthread+0x10/0x10 [ 17.934129] ? _raw_spin_unlock_irq+0x47/0x80 [ 17.934150] ? calculate_sigpending+0x7b/0xa0 [ 17.934176] ? __pfx_kthread+0x10/0x10 [ 17.934198] ret_from_fork+0x116/0x1d0 [ 17.934218] ? __pfx_kthread+0x10/0x10 [ 17.934252] ret_from_fork_asm+0x1a/0x30 [ 17.934286] </TASK> [ 17.934301] [ 17.942396] Allocated by task 299: [ 17.943010] kasan_save_stack+0x45/0x70 [ 17.943364] kasan_save_track+0x18/0x40 [ 17.943698] kasan_save_alloc_info+0x3b/0x50 [ 17.944315] __kasan_kmalloc+0xb7/0xc0 [ 17.944633] __kmalloc_cache_noprof+0x189/0x420 [ 17.945186] copy_to_kernel_nofault_oob+0x12f/0x560 [ 17.945626] kunit_try_run_case+0x1a5/0x480 [ 17.945840] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.946048] kthread+0x337/0x6f0 [ 17.946142] ret_from_fork+0x116/0x1d0 [ 17.946373] ret_from_fork_asm+0x1a/0x30 [ 17.946691] [ 17.947015] The buggy address belongs to the object at ffff888102b5b700 [ 17.947015] which belongs to the cache kmalloc-128 of size 128 [ 17.947337] The buggy address is located 0 bytes to the right of [ 17.947337] allocated 120-byte region [ffff888102b5b700, ffff888102b5b778) [ 17.947668] [ 17.947775] The buggy address belongs to the physical page: [ 17.948119] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b5b [ 17.948571] flags: 0x200000000000000(node=0|zone=2) [ 17.948707] page_type: f5(slab) [ 17.948857] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 17.949260] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.949399] page dumped because: kasan: bad access detected [ 17.950139] [ 17.950311] Memory state around the buggy address: [ 17.950650] ffff888102b5b600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.950985] ffff888102b5b680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.951159] >ffff888102b5b700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 17.951346] ^ [ 17.951791] ffff888102b5b780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.952126] ffff888102b5b800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.952383] ==================================================================