Date
June 7, 2025, 10:40 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.948406] ================================================================== [ 22.949472] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x154/0x2e0 [ 22.950457] Read of size 18446744073709551614 at addr fff00000c645b604 by task kunit_try_catch/169 [ 22.951945] [ 22.952247] CPU: 1 UID: 0 PID: 169 Comm: kunit_try_catch Tainted: G B N 6.14.11-rc1 #1 [ 22.952497] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.952571] Hardware name: linux,dummy-virt (DT) [ 22.952692] Call trace: [ 22.952764] show_stack+0x20/0x38 (C) [ 22.952928] dump_stack_lvl+0x8c/0xd0 [ 22.953008] print_report+0x118/0x608 [ 22.953131] kasan_report+0xdc/0x128 [ 22.953252] kasan_check_range+0x100/0x1a8 [ 22.953361] __asan_memmove+0x3c/0x98 [ 22.953467] kmalloc_memmove_negative_size+0x154/0x2e0 [ 22.953590] kunit_try_run_case+0x170/0x3f0 [ 22.953708] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.953825] kthread+0x318/0x620 [ 22.953951] ret_from_fork+0x10/0x20 [ 22.954089] [ 22.960333] Allocated by task 169: [ 22.960923] kasan_save_stack+0x3c/0x68 [ 22.961566] kasan_save_track+0x20/0x40 [ 22.962176] kasan_save_alloc_info+0x40/0x58 [ 22.962854] __kasan_kmalloc+0xd4/0xd8 [ 22.963301] __kmalloc_cache_noprof+0x16c/0x3c0 [ 22.963981] kmalloc_memmove_negative_size+0xb0/0x2e0 [ 22.964661] kunit_try_run_case+0x170/0x3f0 [ 22.965171] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.965798] kthread+0x318/0x620 [ 22.966356] ret_from_fork+0x10/0x20 [ 22.966922] [ 22.967197] The buggy address belongs to the object at fff00000c645b600 [ 22.967197] which belongs to the cache kmalloc-64 of size 64 [ 22.968548] The buggy address is located 4 bytes inside of [ 22.968548] 64-byte region [fff00000c645b600, fff00000c645b640) [ 22.969627] [ 22.969998] The buggy address belongs to the physical page: [ 22.970656] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10645b [ 22.971613] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 22.972358] page_type: f5(slab) [ 22.972907] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 22.973678] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 22.974350] page dumped because: kasan: bad access detected [ 22.975060] [ 22.976150] Memory state around the buggy address: [ 22.976605] fff00000c645b500: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 22.977339] fff00000c645b580: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 22.978300] >fff00000c645b600: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 22.978988] ^ [ 22.979677] fff00000c645b680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.980493] fff00000c645b700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.981435] ==================================================================
[ 17.840210] ================================================================== [ 17.840840] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x172/0x330 [ 17.841534] Read of size 18446744073709551614 at addr ffff888102ca9204 by task kunit_try_catch/188 [ 17.842983] [ 17.843286] CPU: 0 UID: 0 PID: 188 Comm: kunit_try_catch Tainted: G B N 6.14.11-rc1 #1 [ 17.843426] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.843477] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.843505] Call Trace: [ 17.843528] <TASK> [ 17.843552] dump_stack_lvl+0x73/0xb0 [ 17.843599] print_report+0xd1/0x650 [ 17.843645] ? __virt_addr_valid+0x1db/0x2d0 [ 17.843706] ? kmalloc_memmove_negative_size+0x172/0x330 [ 17.843757] ? kasan_complete_mode_report_info+0x2a/0x200 [ 17.843816] ? kmalloc_memmove_negative_size+0x172/0x330 [ 17.843927] kasan_report+0x140/0x180 [ 17.843966] ? kmalloc_memmove_negative_size+0x172/0x330 [ 17.844004] kasan_check_range+0x10c/0x1c0 [ 17.844034] __asan_memmove+0x27/0x70 [ 17.844063] kmalloc_memmove_negative_size+0x172/0x330 [ 17.844093] ? __pfx_kmalloc_memmove_negative_size+0x10/0x10 [ 17.844124] ? __schedule+0xce8/0x2840 [ 17.844156] ? __pfx_read_tsc+0x10/0x10 [ 17.844187] ? ktime_get_ts64+0x86/0x230 [ 17.844220] kunit_try_run_case+0x1a6/0x480 [ 17.844251] ? __pfx_kunit_try_run_case+0x10/0x10 [ 17.844277] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 17.844324] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 17.844361] ? __kthread_parkme+0x82/0x160 [ 17.844391] ? preempt_count_sub+0x50/0x80 [ 17.844423] ? __pfx_kunit_try_run_case+0x10/0x10 [ 17.844450] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.844483] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 17.844514] kthread+0x324/0x6e0 [ 17.844541] ? trace_preempt_on+0x20/0xc0 [ 17.844570] ? __pfx_kthread+0x10/0x10 [ 17.844598] ? _raw_spin_unlock_irq+0x47/0x80 [ 17.844625] ? calculate_sigpending+0x7b/0xa0 [ 17.844652] ? __pfx_kthread+0x10/0x10 [ 17.844680] ret_from_fork+0x41/0x80 [ 17.844705] ? __pfx_kthread+0x10/0x10 [ 17.844733] ret_from_fork_asm+0x1a/0x30 [ 17.844772] </TASK> [ 17.844788] [ 17.857092] Allocated by task 188: [ 17.857538] kasan_save_stack+0x45/0x70 [ 17.857943] kasan_save_track+0x18/0x40 [ 17.858197] kasan_save_alloc_info+0x3b/0x50 [ 17.858446] __kasan_kmalloc+0xb7/0xc0 [ 17.858793] __kmalloc_cache_noprof+0x18a/0x420 [ 17.859219] kmalloc_memmove_negative_size+0xad/0x330 [ 17.859789] kunit_try_run_case+0x1a6/0x480 [ 17.860225] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.860722] kthread+0x324/0x6e0 [ 17.861094] ret_from_fork+0x41/0x80 [ 17.861358] ret_from_fork_asm+0x1a/0x30 [ 17.861651] [ 17.861856] The buggy address belongs to the object at ffff888102ca9200 [ 17.861856] which belongs to the cache kmalloc-64 of size 64 [ 17.862394] The buggy address is located 4 bytes inside of [ 17.862394] 64-byte region [ffff888102ca9200, ffff888102ca9240) [ 17.863012] [ 17.863223] The buggy address belongs to the physical page: [ 17.863967] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ca9 [ 17.864723] flags: 0x200000000000000(node=0|zone=2) [ 17.868213] page_type: f5(slab) [ 17.868492] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 17.869258] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 17.869699] page dumped because: kasan: bad access detected [ 17.870212] [ 17.870420] Memory state around the buggy address: [ 17.870741] ffff888102ca9100: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 17.871158] ffff888102ca9180: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 17.871728] >ffff888102ca9200: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 17.872339] ^ [ 17.872585] ffff888102ca9280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.872929] ffff888102ca9300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.873554] ==================================================================