Date
July 17, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.944237] ================================================================== [ 19.944570] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 19.944570] [ 19.944703] Use-after-free read at 0x00000000f821d117 (in kfence-#86): [ 19.944760] test_use_after_free_read+0x114/0x248 [ 19.945073] kunit_try_run_case+0x170/0x3f0 [ 19.945233] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.945593] kthread+0x328/0x630 [ 19.945649] ret_from_fork+0x10/0x20 [ 19.945778] [ 19.945888] kfence-#86: 0x00000000f821d117-0x0000000041b7e6e8, size=32, cache=test [ 19.945888] [ 19.946097] allocated by task 298 on cpu 0 at 19.943689s (0.002382s ago): [ 19.946538] test_alloc+0x230/0x628 [ 19.946686] test_use_after_free_read+0xd0/0x248 [ 19.946910] kunit_try_run_case+0x170/0x3f0 [ 19.947125] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.947261] kthread+0x328/0x630 [ 19.947342] ret_from_fork+0x10/0x20 [ 19.947615] [ 19.947817] freed by task 298 on cpu 0 at 19.943776s (0.003999s ago): [ 19.948064] test_use_after_free_read+0xf0/0x248 [ 19.948308] kunit_try_run_case+0x170/0x3f0 [ 19.948487] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.948613] kthread+0x328/0x630 [ 19.948681] ret_from_fork+0x10/0x20 [ 19.948923] [ 19.948992] CPU: 0 UID: 0 PID: 298 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 19.949223] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.949255] Hardware name: linux,dummy-virt (DT) [ 19.949318] ================================================================== [ 19.834316] ================================================================== [ 19.834698] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 19.834698] [ 19.834806] Use-after-free read at 0x0000000078a12d3d (in kfence-#85): [ 19.834861] test_use_after_free_read+0x114/0x248 [ 19.834908] kunit_try_run_case+0x170/0x3f0 [ 19.834953] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.835007] kthread+0x328/0x630 [ 19.835043] ret_from_fork+0x10/0x20 [ 19.835085] [ 19.835108] kfence-#85: 0x0000000078a12d3d-0x00000000ddb1bee2, size=32, cache=kmalloc-32 [ 19.835108] [ 19.835181] allocated by task 296 on cpu 0 at 19.833787s (0.001389s ago): [ 19.835251] test_alloc+0x29c/0x628 [ 19.835298] test_use_after_free_read+0xd0/0x248 [ 19.835350] kunit_try_run_case+0x170/0x3f0 [ 19.835389] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.835438] kthread+0x328/0x630 [ 19.835474] ret_from_fork+0x10/0x20 [ 19.835521] [ 19.835680] freed by task 296 on cpu 0 at 19.834024s (0.001544s ago): [ 19.835798] test_use_after_free_read+0x1c0/0x248 [ 19.835857] kunit_try_run_case+0x170/0x3f0 [ 19.835897] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.835940] kthread+0x328/0x630 [ 19.835974] ret_from_fork+0x10/0x20 [ 19.836928] [ 19.837117] CPU: 0 UID: 0 PID: 296 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 19.837305] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.837391] Hardware name: linux,dummy-virt (DT) [ 19.837458] ==================================================================
[ 17.986898] ================================================================== [ 17.987452] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 17.987452] [ 17.987929] Use-after-free read at 0x(____ptrval____) (in kfence-#66): [ 17.988198] test_use_after_free_read+0x129/0x270 [ 17.988441] kunit_try_run_case+0x1a5/0x480 [ 17.988684] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.988970] kthread+0x337/0x6f0 [ 17.989148] ret_from_fork+0x116/0x1d0 [ 17.989340] ret_from_fork_asm+0x1a/0x30 [ 17.989486] [ 17.989575] kfence-#66: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 17.989575] [ 17.990102] allocated by task 312 on cpu 1 at 17.986693s (0.003406s ago): [ 17.990577] test_alloc+0x364/0x10f0 [ 17.990795] test_use_after_free_read+0xdc/0x270 [ 17.991019] kunit_try_run_case+0x1a5/0x480 [ 17.991199] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.991373] kthread+0x337/0x6f0 [ 17.991493] ret_from_fork+0x116/0x1d0 [ 17.991722] ret_from_fork_asm+0x1a/0x30 [ 17.991938] [ 17.992434] freed by task 312 on cpu 1 at 17.986744s (0.005512s ago): [ 17.993456] test_use_after_free_read+0x1e7/0x270 [ 17.993691] kunit_try_run_case+0x1a5/0x480 [ 17.994113] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.994400] kthread+0x337/0x6f0 [ 17.994866] ret_from_fork+0x116/0x1d0 [ 17.995008] ret_from_fork_asm+0x1a/0x30 [ 17.995169] [ 17.995273] CPU: 1 UID: 0 PID: 312 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 17.995813] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.996306] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.996857] ================================================================== [ 18.090756] ================================================================== [ 18.091153] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 18.091153] [ 18.091593] Use-after-free read at 0x(____ptrval____) (in kfence-#67): [ 18.091897] test_use_after_free_read+0x129/0x270 [ 18.092144] kunit_try_run_case+0x1a5/0x480 [ 18.092357] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.092658] kthread+0x337/0x6f0 [ 18.092843] ret_from_fork+0x116/0x1d0 [ 18.093033] ret_from_fork_asm+0x1a/0x30 [ 18.093177] [ 18.093252] kfence-#67: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=test [ 18.093252] [ 18.093594] allocated by task 314 on cpu 0 at 18.090591s (0.003001s ago): [ 18.093990] test_alloc+0x2a6/0x10f0 [ 18.094223] test_use_after_free_read+0xdc/0x270 [ 18.094489] kunit_try_run_case+0x1a5/0x480 [ 18.094713] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.094975] kthread+0x337/0x6f0 [ 18.095120] ret_from_fork+0x116/0x1d0 [ 18.095254] ret_from_fork_asm+0x1a/0x30 [ 18.095402] [ 18.095528] freed by task 314 on cpu 0 at 18.090655s (0.004870s ago): [ 18.095889] test_use_after_free_read+0xfb/0x270 [ 18.096156] kunit_try_run_case+0x1a5/0x480 [ 18.096368] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.096692] kthread+0x337/0x6f0 [ 18.096858] ret_from_fork+0x116/0x1d0 [ 18.097028] ret_from_fork_asm+0x1a/0x30 [ 18.097251] [ 18.097389] CPU: 0 UID: 0 PID: 314 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 18.097864] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.098043] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 18.098487] ==================================================================