================================================================== BUG: KASAN: vmalloc-out-of-bounds in tpg_fill_plane_pattern drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2538 [inline] BUG: KASAN: vmalloc-out-of-bounds in tpg_fill_plane_buffer+0x1329/0x3a30 drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2626 Write of size 32 at addr ffffc90004899a56 by task vivid-000-vid-c/20690 CPU: 0 PID: 20690 Comm: vivid-000-vid-c Not tainted 5.18.0-rc1-syzkaller-00016-g3e732ebf7316 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0xf/0x495 mm/kasan/report.c:313 print_report mm/kasan/report.c:429 [inline] kasan_report.cold+0xf4/0x1c6 mm/kasan/report.c:491 check_region_inline mm/kasan/generic.c:183 [inline] kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189 memcpy+0x39/0x60 mm/kasan/shadow.c:66 tpg_fill_plane_pattern drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2538 [inline] tpg_fill_plane_buffer+0x1329/0x3a30 drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2626 vivid_fillbuff+0x1ac1/0x3f10 drivers/media/test-drivers/vivid/vivid-kthread-cap.c:470 vivid_thread_vid_cap_tick+0x80b/0x2230 drivers/media/test-drivers/vivid/vivid-kthread-cap.c:729 vivid_thread_vid_cap+0x64d/0xb90 drivers/media/test-drivers/vivid/vivid-kthread-cap.c:872 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 The buggy address belongs to the virtual mapping at [ffffc90004809000, ffffc9000489a000) created by: vb2_vmalloc_alloc+0x11e/0x3f0 drivers/media/common/videobuf2/videobuf2-vmalloc.c:47 ------------[ cut here ]------------ kernel BUG at mm/vmalloc.c:660! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 20690 Comm: vivid-000-vid-c Not tainted 5.18.0-rc1-syzkaller-00016-g3e732ebf7316 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:vmalloc_to_page+0x46e/0x4f0 mm/vmalloc.c:660 Code: c1 ff 4d 31 fc 4d 21 f4 49 c1 ec 0c 4c 01 e3 49 bc 00 00 00 00 00 ea ff ff 48 c1 e3 06 49 01 dc e9 35 ff ff ff e8 02 74 c1 ff <0f> 0b e8 fb 73 c1 ff 0f 0b 45 31 e4 e9 1f ff ff ff e8 ec 73 c1 ff RSP: 0018:ffffc90003ff77f0 EFLAGS: 00010093 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88802af15700 RSI: ffffffff81b7aebe RDI: 0000000000000003 RBP: ffffffff8ba8e000 R08: 00001ffffffffffe R09: 0000000000000000 R10: ffffffff81b7aad6 R11: 0000000000000000 R12: 0000370000000000 R13: 0000000000000000 R14: ffff88802af15700 R15: 0000000000000292 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555556fec708 CR3: 0000000024a22000 CR4: 0000000000350ef0 Call Trace: print_address_description.constprop.0.cold+0x2fc/0x495 mm/kasan/report.c:350 print_report mm/kasan/report.c:429 [inline] kasan_report.cold+0xf4/0x1c6 mm/kasan/report.c:491 check_region_inline mm/kasan/generic.c:183 [inline] kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189 memcpy+0x39/0x60 mm/kasan/shadow.c:66 tpg_fill_plane_pattern drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2538 [inline] tpg_fill_plane_buffer+0x1329/0x3a30 drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2626 vivid_fillbuff+0x1ac1/0x3f10 drivers/media/test-drivers/vivid/vivid-kthread-cap.c:470 vivid_thread_vid_cap_tick+0x80b/0x2230 drivers/media/test-drivers/vivid/vivid-kthread-cap.c:729 vivid_thread_vid_cap+0x64d/0xb90 drivers/media/test-drivers/vivid/vivid-kthread-cap.c:872 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:vmalloc_to_page+0x46e/0x4f0 mm/vmalloc.c:660 Code: c1 ff 4d 31 fc 4d 21 f4 49 c1 ec 0c 4c 01 e3 49 bc 00 00 00 00 00 ea ff ff 48 c1 e3 06 49 01 dc e9 35 ff ff ff e8 02 74 c1 ff <0f> 0b e8 fb 73 c1 ff 0f 0b 45 31 e4 e9 1f ff ff ff e8 ec 73 c1 ff RSP: 0018:ffffc90003ff77f0 EFLAGS: 00010093 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88802af15700 RSI: ffffffff81b7aebe RDI: 0000000000000003 RBP: ffffffff8ba8e000 R08: 00001ffffffffffe R09: 0000000000000000 R10: ffffffff81b7aad6 R11: 0000000000000000 R12: 0000370000000000 R13: 0000000000000000 R14: ffff88802af15700 R15: 0000000000000292 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555556fec708 CR3: 0000000024a22000 CR4: 0000000000350ef0