Date
Feb. 5, 2025, 2:09 p.m.
| Environment | |
|---|---|
| qemu-armv7 | |
| qemu-x86_64 |
[ 145.566803] ================================================================== [ 145.567984] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0xe4/0x1e8 [ 145.568717] Read of size 64 at addr c4fcf684 by task kunit_try_catch/155 [ 145.569307] [ 145.569640] CPU: 0 PID: 155 Comm: kunit_try_catch Tainted: G B N 6.6.76-rc1 #1 [ 145.570685] Hardware name: Generic DT based system [ 145.571145] unwind_backtrace from show_stack+0x18/0x1c [ 145.571945] show_stack from dump_stack_lvl+0x58/0x70 [ 145.572575] dump_stack_lvl from print_report+0x164/0x51c [ 145.573467] print_report from kasan_report+0xc8/0x104 [ 145.574074] kasan_report from kasan_check_range+0x14c/0x198 [ 145.574944] kasan_check_range from __asan_memmove+0x28/0x68 [ 145.575753] __asan_memmove from kmalloc_memmove_invalid_size+0xe4/0x1e8 [ 145.576614] kmalloc_memmove_invalid_size from kunit_try_run_case+0x11c/0x2e4 [ 145.577638] kunit_try_run_case from kunit_generic_run_threadfn_adapter+0x2c/0x48 [ 145.578683] kunit_generic_run_threadfn_adapter from kthread+0x184/0x1a8 [ 145.579784] kthread from ret_from_fork+0x14/0x30 [ 145.580382] Exception stack(0xf9fd3fb0 to 0xf9fd3ff8) [ 145.580941] 3fa0: 00000000 00000000 00000000 00000000 [ 145.581887] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 145.582987] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 145.583703] [ 145.583953] Allocated by task 155: [ 145.584322] kasan_set_track+0x3c/0x5c [ 145.584903] __kasan_kmalloc+0x8c/0x94 [ 145.585412] kmalloc_memmove_invalid_size+0xa0/0x1e8 [ 145.586404] kunit_try_run_case+0x11c/0x2e4 [ 145.586937] kunit_generic_run_threadfn_adapter+0x2c/0x48 [ 145.588495] kthread+0x184/0x1a8 [ 145.588901] ret_from_fork+0x14/0x30 [ 145.589408] [ 145.589683] The buggy address belongs to the object at c4fcf680 [ 145.589683] which belongs to the cache kmalloc-64 of size 64 [ 145.591000] The buggy address is located 4 bytes inside of [ 145.591000] allocated 64-byte region [c4fcf680, c4fcf6c0) [ 145.592299] [ 145.592539] The buggy address belongs to the physical page: [ 145.593212] page:8516b471 refcount:1 mapcount:0 mapping:00000000 index:0x0 pfn:0x44fcf [ 145.594084] flags: 0x800(slab|zone=0) [ 145.594641] page_type: 0xffffffff() [ 145.595167] raw: 00000800 c4801200 00000122 00000000 00000000 80200020 ffffffff 00000001 [ 145.596109] raw: 00000000 [ 145.596393] page dumped because: kasan: bad access detected [ 145.597115] [ 145.597365] Memory state around the buggy address: [ 145.598018] c4fcf580: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 145.598697] c4fcf600: 00 00 07 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 145.599440] >c4fcf680: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 145.600247] ^ [ 145.600741] c4fcf700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 145.601561] c4fcf780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 145.602327] ==================================================================
[ 48.413924] ================================================================== [ 48.415039] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0xea/0x1f0 [ 48.415863] Read of size 64 at addr ffff8881028cfa04 by task kunit_try_catch/178 [ 48.416726] [ 48.417077] CPU: 1 PID: 178 Comm: kunit_try_catch Tainted: G B N 6.6.76-rc1 #1 [ 48.417888] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 48.418906] Call Trace: [ 48.419387] <TASK> [ 48.419842] dump_stack_lvl+0x4e/0x90 [ 48.420432] print_report+0xd2/0x660 [ 48.421016] ? __virt_addr_valid+0x156/0x1e0 [ 48.421303] ? kasan_complete_mode_report_info+0x2a/0x200 [ 48.421606] kasan_report+0xff/0x140 [ 48.422162] ? kmalloc_memmove_invalid_size+0xea/0x1f0 [ 48.423379] ? kmalloc_memmove_invalid_size+0xea/0x1f0 [ 48.424198] kasan_check_range+0x10c/0x1c0 [ 48.424795] __asan_memmove+0x27/0x70 [ 48.425259] kmalloc_memmove_invalid_size+0xea/0x1f0 [ 48.425926] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 48.426499] ? __schedule+0x70b/0x1190 [ 48.427184] ? ktime_get_ts64+0x118/0x140 [ 48.427813] kunit_try_run_case+0x126/0x290 [ 48.428534] ? __pfx_kunit_try_run_case+0x10/0x10 [ 48.429257] ? __kasan_check_write+0x18/0x20 [ 48.429989] ? trace_preempt_on+0x20/0xa0 [ 48.430563] ? __kthread_parkme+0x4f/0xd0 [ 48.431296] ? preempt_count_sub+0x50/0x80 [ 48.431863] ? __pfx_kunit_try_run_case+0x10/0x10 [ 48.432458] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 48.433266] kunit_generic_run_threadfn_adapter+0x33/0x50 [ 48.433968] kthread+0x19e/0x1e0 [ 48.434519] ? __pfx_kthread+0x10/0x10 [ 48.435096] ret_from_fork+0x41/0x70 [ 48.435731] ? __pfx_kthread+0x10/0x10 [ 48.436346] ret_from_fork_asm+0x1b/0x30 [ 48.436942] </TASK> [ 48.437288] [ 48.437624] Allocated by task 178: [ 48.438224] kasan_save_stack+0x3c/0x60 [ 48.438800] kasan_set_track+0x29/0x40 [ 48.439314] kasan_save_alloc_info+0x22/0x30 [ 48.439908] __kasan_kmalloc+0xb7/0xc0 [ 48.440439] kmalloc_trace+0x4c/0xb0 [ 48.441000] kmalloc_memmove_invalid_size+0x9f/0x1f0 [ 48.441646] kunit_try_run_case+0x126/0x290 [ 48.442269] kunit_generic_run_threadfn_adapter+0x33/0x50 [ 48.443048] kthread+0x19e/0x1e0 [ 48.443548] ret_from_fork+0x41/0x70 [ 48.444172] ret_from_fork_asm+0x1b/0x30 [ 48.444775] [ 48.445059] The buggy address belongs to the object at ffff8881028cfa00 [ 48.445059] which belongs to the cache kmalloc-64 of size 64 [ 48.446587] The buggy address is located 4 bytes inside of [ 48.446587] allocated 64-byte region [ffff8881028cfa00, ffff8881028cfa40) [ 48.447347] [ 48.447542] The buggy address belongs to the physical page: [ 48.448768] page:(____ptrval____) refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1028cf [ 48.450381] flags: 0x200000000000800(slab|node=0|zone=2) [ 48.450873] page_type: 0xffffffff() [ 48.451365] raw: 0200000000000800 ffff888100041640 dead000000000122 0000000000000000 [ 48.452184] raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000 [ 48.452684] page dumped because: kasan: bad access detected [ 48.453143] [ 48.453344] Memory state around the buggy address: [ 48.453782] ffff8881028cf900: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 48.454323] ffff8881028cf980: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 48.456199] >ffff8881028cfa00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 48.456992] ^ [ 48.457610] ffff8881028cfa80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 48.458477] ffff8881028cfb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 48.459286] ==================================================================