Date
July 20, 2025, 8:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 48.812470] ================================================================== [ 48.812530] BUG: KFENCE: use-after-free read in test_krealloc+0x51c/0x830 [ 48.812530] [ 48.812612] Use-after-free read at 0x00000000ba05f26a (in kfence-#147): [ 48.812665] test_krealloc+0x51c/0x830 [ 48.812711] kunit_try_run_case+0x170/0x3f0 [ 48.812755] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 48.812800] kthread+0x328/0x630 [ 48.812838] ret_from_fork+0x10/0x20 [ 48.812883] [ 48.812908] kfence-#147: 0x00000000ba05f26a-0x000000005169bf67, size=32, cache=kmalloc-32 [ 48.812908] [ 48.812961] allocated by task 338 on cpu 0 at 48.811862s (0.001095s ago): [ 48.813028] test_alloc+0x29c/0x628 [ 48.813078] test_krealloc+0xc0/0x830 [ 48.813117] kunit_try_run_case+0x170/0x3f0 [ 48.813157] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 48.813212] kthread+0x328/0x630 [ 48.813249] ret_from_fork+0x10/0x20 [ 48.813288] [ 48.813310] freed by task 338 on cpu 0 at 48.812068s (0.001238s ago): [ 48.813372] krealloc_noprof+0x148/0x360 [ 48.813410] test_krealloc+0x1dc/0x830 [ 48.813449] kunit_try_run_case+0x170/0x3f0 [ 48.813488] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 48.813532] kthread+0x328/0x630 [ 48.813569] ret_from_fork+0x10/0x20 [ 48.813608] [ 48.813652] CPU: 0 UID: 0 PID: 338 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 48.813730] Tainted: [B]=BAD_PAGE, [N]=TEST [ 48.813760] Hardware name: linux,dummy-virt (DT) [ 48.813796] ==================================================================
[ 49.356170] ================================================================== [ 49.356596] BUG: KFENCE: use-after-free read in test_krealloc+0x6fc/0xbe0 [ 49.356596] [ 49.357021] Use-after-free read at 0x(____ptrval____) (in kfence-#128): [ 49.357366] test_krealloc+0x6fc/0xbe0 [ 49.357556] kunit_try_run_case+0x1a5/0x480 [ 49.357811] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 49.358076] kthread+0x337/0x6f0 [ 49.358260] ret_from_fork+0x116/0x1d0 [ 49.358414] ret_from_fork_asm+0x1a/0x30 [ 49.358694] [ 49.358829] kfence-#128: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 49.358829] [ 49.359691] allocated by task 355 on cpu 1 at 49.355377s (0.004311s ago): [ 49.360083] test_alloc+0x364/0x10f0 [ 49.360225] test_krealloc+0xad/0xbe0 [ 49.360400] kunit_try_run_case+0x1a5/0x480 [ 49.360632] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 49.361185] kthread+0x337/0x6f0 [ 49.361662] ret_from_fork+0x116/0x1d0 [ 49.361853] ret_from_fork_asm+0x1a/0x30 [ 49.362321] [ 49.362549] freed by task 355 on cpu 1 at 49.355680s (0.006865s ago): [ 49.362976] krealloc_noprof+0x108/0x340 [ 49.363287] test_krealloc+0x226/0xbe0 [ 49.363601] kunit_try_run_case+0x1a5/0x480 [ 49.363808] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 49.364249] kthread+0x337/0x6f0 [ 49.364539] ret_from_fork+0x116/0x1d0 [ 49.364820] ret_from_fork_asm+0x1a/0x30 [ 49.365052] [ 49.365290] CPU: 1 UID: 0 PID: 355 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 49.365778] Tainted: [B]=BAD_PAGE, [N]=TEST [ 49.366263] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 49.366757] ==================================================================