Date
July 15, 2025, 2:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.714636] ================================================================== [ 22.714997] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 22.714997] [ 22.715104] Use-after-free read at 0x0000000091d925ae (in kfence-#92): [ 22.715158] test_use_after_free_read+0x114/0x248 [ 22.715408] kunit_try_run_case+0x170/0x3f0 [ 22.715590] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.715650] kthread+0x328/0x630 [ 22.715752] ret_from_fork+0x10/0x20 [ 22.715793] [ 22.715816] kfence-#92: 0x0000000091d925ae-0x00000000f8321f6c, size=32, cache=test [ 22.715816] [ 22.716079] allocated by task 299 on cpu 0 at 22.714301s (0.001746s ago): [ 22.716267] test_alloc+0x230/0x628 [ 22.716407] test_use_after_free_read+0xd0/0x248 [ 22.716594] kunit_try_run_case+0x170/0x3f0 [ 22.716858] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.716906] kthread+0x328/0x630 [ 22.716944] ret_from_fork+0x10/0x20 [ 22.716983] [ 22.717007] freed by task 299 on cpu 0 at 22.714513s (0.002491s ago): [ 22.717502] test_use_after_free_read+0xf0/0x248 [ 22.717560] kunit_try_run_case+0x170/0x3f0 [ 22.717625] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.717671] kthread+0x328/0x630 [ 22.717711] ret_from_fork+0x10/0x20 [ 22.717776] [ 22.717861] CPU: 0 UID: 0 PID: 299 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT [ 22.718148] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.718183] Hardware name: linux,dummy-virt (DT) [ 22.718228] ================================================================== [ 22.607504] ================================================================== [ 22.607601] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 22.607601] [ 22.607693] Use-after-free read at 0x000000002ea02368 (in kfence-#91): [ 22.607745] test_use_after_free_read+0x114/0x248 [ 22.607790] kunit_try_run_case+0x170/0x3f0 [ 22.607834] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.607881] kthread+0x328/0x630 [ 22.608437] ret_from_fork+0x10/0x20 [ 22.608516] [ 22.608974] kfence-#91: 0x000000002ea02368-0x0000000070e729a0, size=32, cache=kmalloc-32 [ 22.608974] [ 22.609097] allocated by task 297 on cpu 0 at 22.606974s (0.002098s ago): [ 22.609562] test_alloc+0x29c/0x628 [ 22.609628] test_use_after_free_read+0xd0/0x248 [ 22.609768] kunit_try_run_case+0x170/0x3f0 [ 22.609980] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.610570] kthread+0x328/0x630 [ 22.610746] ret_from_fork+0x10/0x20 [ 22.611083] [ 22.611121] freed by task 297 on cpu 0 at 22.607079s (0.004037s ago): [ 22.611656] test_use_after_free_read+0x1c0/0x248 [ 22.611811] kunit_try_run_case+0x170/0x3f0 [ 22.611960] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.612009] kthread+0x328/0x630 [ 22.612047] ret_from_fork+0x10/0x20 [ 22.612679] [ 22.612737] CPU: 0 UID: 0 PID: 297 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT [ 22.612955] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.612995] Hardware name: linux,dummy-virt (DT) [ 22.613045] ==================================================================
[ 16.060255] ================================================================== [ 16.060654] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 16.060654] [ 16.061117] Use-after-free read at 0x(____ptrval____) (in kfence-#70): [ 16.061398] test_use_after_free_read+0x129/0x270 [ 16.061578] kunit_try_run_case+0x1a5/0x480 [ 16.061799] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.062033] kthread+0x337/0x6f0 [ 16.062175] ret_from_fork+0x41/0x80 [ 16.062364] ret_from_fork_asm+0x1a/0x30 [ 16.062563] [ 16.062644] kfence-#70: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=test [ 16.062644] [ 16.063043] allocated by task 316 on cpu 1 at 16.060052s (0.002989s ago): [ 16.063354] test_alloc+0x2a6/0x10f0 [ 16.063484] test_use_after_free_read+0xdc/0x270 [ 16.063709] kunit_try_run_case+0x1a5/0x480 [ 16.063990] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.064241] kthread+0x337/0x6f0 [ 16.064362] ret_from_fork+0x41/0x80 [ 16.064579] ret_from_fork_asm+0x1a/0x30 [ 16.064789] [ 16.064898] freed by task 316 on cpu 1 at 16.060101s (0.004794s ago): [ 16.065239] test_use_after_free_read+0xfb/0x270 [ 16.065501] kunit_try_run_case+0x1a5/0x480 [ 16.065659] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.065915] kthread+0x337/0x6f0 [ 16.066046] ret_from_fork+0x41/0x80 [ 16.066224] ret_from_fork_asm+0x1a/0x30 [ 16.066412] [ 16.066542] CPU: 1 UID: 0 PID: 316 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT(voluntary) [ 16.067044] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.067202] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 16.067561] ================================================================== [ 15.956259] ================================================================== [ 15.956742] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 15.956742] [ 15.957207] Use-after-free read at 0x(____ptrval____) (in kfence-#69): [ 15.957451] test_use_after_free_read+0x129/0x270 [ 15.957662] kunit_try_run_case+0x1a5/0x480 [ 15.957893] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.958106] kthread+0x337/0x6f0 [ 15.958262] ret_from_fork+0x41/0x80 [ 15.958427] ret_from_fork_asm+0x1a/0x30 [ 15.958626] [ 15.958717] kfence-#69: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 15.958717] [ 15.959110] allocated by task 314 on cpu 0 at 15.956044s (0.003063s ago): [ 15.959419] test_alloc+0x364/0x10f0 [ 15.959550] test_use_after_free_read+0xdc/0x270 [ 15.959733] kunit_try_run_case+0x1a5/0x480 [ 15.960067] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.960241] kthread+0x337/0x6f0 [ 15.960359] ret_from_fork+0x41/0x80 [ 15.960533] ret_from_fork_asm+0x1a/0x30 [ 15.960732] [ 15.960841] freed by task 314 on cpu 0 at 15.956109s (0.004729s ago): [ 15.961165] test_use_after_free_read+0x1e7/0x270 [ 15.961337] kunit_try_run_case+0x1a5/0x480 [ 15.961479] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.961730] kthread+0x337/0x6f0 [ 15.962007] ret_from_fork+0x41/0x80 [ 15.962159] ret_from_fork_asm+0x1a/0x30 [ 15.962352] [ 15.962445] CPU: 0 UID: 0 PID: 314 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT(voluntary) [ 15.962777] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.963080] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 15.963489] ==================================================================