8<--- cut here --- Unable to handle kernel paging request at virtual address e03c4000 pgd = 85933d40 [e03c4000] *pgd=80000080007003, *pmd=84447003, *pte=00000000 Internal error: Oops: a07 [#1] PREEMPT SMP ARM Modules linked in: CPU: 0 PID: 9255 Comm: syz-executor.0 Not tainted 5.12.0-rc3-syzkaller #0 Hardware name: ARM-Versatile Express PC is at __raw_writel arch/arm/include/asm/io.h:95 [inline] PC is at bitfill_aligned drivers/video/fbdev/core/cfbfillrect.c:65 [inline] PC is at bitfill_aligned+0x94/0x138 drivers/video/fbdev/core/cfbfillrect.c:35 LR is at bitfill_aligned drivers/video/fbdev/core/cfbfillrect.c:62 [inline] LR is at bitfill_aligned+0x80/0x138 drivers/video/fbdev/core/cfbfillrect.c:35 pc : [<808f355c>] lr : [<808f3548>] psr: 20000013 sp : 86ca7ad0 ip : 86ca7b00 fp : 86ca7afc r10: 00008100 r9 : 00000020 r8 : ffffffff r7 : 00000000 r6 : 00000000 r5 : e03c3000 r4 : 00090000 r3 : e03c4020 r2 : 00000000 r1 : 00000020 r0 : 00000408 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 85933d40 DAC: fffffffd Process syz-executor.0 (pid: 9255, stack limit = 0x86ca6210) Stack: (0x86ca7ad0 to 0x86ca8000) 7ac0: 00090000 843e5000 00000000 e03c3000 7ae0: 00008100 00090000 808f34c8 00000000 86ca7b4c 86ca7b00 808f3340 808f34d4 7b00: 00008100 00000020 86ca7b04 56b92eae 844b2134 844b2a1c 00080000 00000000 7b20: 00000000 86ca7b74 843e5000 000002f0 00000010 833a7c6c 833a7c6c 83420800 7b40: 86ca7b6c 86ca7b50 809b51b4 808f319c 86ca7ba4 86ca7b60 843e5000 00000408 7b60: 86ca7bac 86ca7b70 808ed840 809b5178 833a7c6c 00000000 00000010 00000408 7b80: 000002f0 00000000 00000000 56b92eae 808ed764 833a7b34 844b2a00 82b5a808 7ba0: 86ca7bc4 86ca7bb0 808e7814 808ed770 843e5000 833a7b34 86ca7cac 86ca7bc8 7bc0: 808ec8ac 808e77bc 86ca7c64 843e5000 843e50a8 00000000 86ca7c2c 00000400 7be0: 00000300 00000400 00000300 00000000 00000000 00000020 00000000 00000010 7c00: 00000008 00000000 00000008 00000008 00000000 00000000 00000008 00000000 7c20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000001 7c40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 7c60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 56b92eae 7c80: 83420800 83420800 00000000 844b2a00 00000001 00000000 844b2a00 00000000 7ca0: 86ca7ce4 86ca7cb0 8095bc9c 808ec604 808df644 808df160 00000000 56b92eae 7cc0: 843e5000 843e5000 83420800 844b2a00 00000001 00000000 86ca7dc4 86ca7ce8 7ce0: 808ebb40 8095bbc0 86ca7d04 86ca7cf8 8181dacc 00000400 00000300 00000400 7d00: 00000300 00000000 00000000 00000020 00000000 00000010 00000008 00000000 7d20: 00000008 00000008 00000000 00000000 00000008 00000000 00000000 00000000 7d40: 00000000 00000000 00000280 00000000 00000000 00000001 00000000 00000000 7d60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 7d80: 00000000 00000000 00000000 00000000 00000000 56b92eae 00000001 833aa120 7da0: 83420800 00000001 00000000 0000003a 83420800 86bba400 86ca7de4 86ca7dc8 7dc0: 8095bea8 808eb994 00000000 86bba400 00004b3a 83420800 86ca7e64 86ca7de8 7de0: 809535a8 8095be08 8181dacc 8181d97c 86ca7e2c 86ca7e00 8181c9a4 8181dabc 7e00: 00000000 00000000 81f94a4c 00000103 82bfd371 86d2f780 00000005 00000036 7e20: 86ca7e54 86ca7e30 8027ea14 8181c88c 00000000 56b92eae 81f94a4c fffffdfd 7e40: 00004b3a 86bba400 86d2f780 fffff73a 00000000 86bba400 86ca7f0c 86ca7e68 7e60: 8093f890 80951c38 00000000 56b92eae 836a8098 0000003a 834e9540 0000004b 7e80: 00000001 86d2f780 00000005 00000036 86ca7eec 86ca7ea0 80701b40 806f7810 7ea0: 00000001 0000004b 0000003a 86ca7ebc 856e4550 83808480 00004b3a 86d2f70b 7ec0: 86ca7eb0 86d2f780 00000005 56b92eae 821280c8 00000000 86d2f780 56b92eae 7ee0: 86ca7f0c 00004b3a 00000000 86d2f781 00000000 86d2f780 00000005 834e9540 7f00: 86ca7fa4 86ca7f10 804f33f4 8093f4d8 8020d140 8020e34c 00000000 80200e90 7f20: 828a2438 80200e90 865a2080 80200060 86ca7f4c 86ca7f40 8181dacc 8181d97c 7f40: 86ca7f74 86ca7f50 8181cb8c 8181dabc 86ca7f98 80384d84 828abd1c 80200e90 7f60: 60000093 30c5387d 86ca7f94 86ca7f78 828abd1c 56b92eae 00000000 00000000 7f80: 00000000 00000000 00000036 80200224 86ca6000 00000036 00000000 86ca7fa8 7fa0: 80200060 804f32e0 00000000 00000000 00000005 00004b3a 00000000 00000000 7fc0: 00000000 00000000 00000000 00000036 7eb4b33a 76fe56d0 7eb4b4ac 76fe520c 7fe0: 76fe5048 76fe5038 00018d58 0004b620 60000010 00000005 00000000 00000000 Backtrace: [<808f34c8>] (bitfill_aligned) from [<808f3340>] (sys_fillrect+0x1b0/0x338 drivers/video/fbdev/core/sysfillrect.c:291) r10:00000000 r9:808f34c8 r8:00090000 r7:00008100 r6:e03c3000 r5:00000000 r4:843e5000 r3:00090000 [<808f3190>] (sys_fillrect) from [<809b51b4>] (drm_fb_helper_sys_fillrect drivers/gpu/drm/drm_fb_helper.c:764 [inline]) [<808f3190>] (sys_fillrect) from [<809b51b4>] (drm_fbdev_fb_fillrect+0x48/0x4c drivers/gpu/drm/drm_fb_helper.c:2258) r10:83420800 r9:833a7c6c r8:833a7c6c r7:00000010 r6:000002f0 r5:843e5000 r4:86ca7b74 [<809b516c>] (drm_fbdev_fb_fillrect) from [<808ed840>] (bit_clear_margins+0xdc/0x104 drivers/video/fbdev/core/bitblit.c:232) r5:00000408 r4:843e5000 [<808ed764>] (bit_clear_margins) from [<808e7814>] (fbcon_clear_margins+0x64/0x68 drivers/video/fbdev/core/fbcon.c:1315) r7:82b5a808 r6:844b2a00 r5:833a7b34 r4:808ed764 [<808e77b0>] (fbcon_clear_margins) from [<808ec8ac>] (fbcon_switch+0x2b4/0x4ac drivers/video/fbdev/core/fbcon.c:2143) r5:833a7b34 r4:843e5000 [<808ec5f8>] (fbcon_switch) from [<8095bc9c>] (redraw_screen+0xe8/0x248 drivers/tty/vt/vt.c:1021) r10:00000000 r9:844b2a00 r8:00000000 r7:00000001 r6:844b2a00 r5:00000000 r4:83420800 [<8095bbb4>] (redraw_screen) from [<808ebb40>] (fbcon_blank+0x1b8/0x250 drivers/video/fbdev/core/fbcon.c:2204) r8:00000000 r7:00000001 r6:844b2a00 r5:83420800 r4:843e5000 [<808eb988>] (fbcon_blank) from [<8095bea8>] (do_unblank_screen+0xac/0x17c drivers/tty/vt/vt.c:4405) r10:86bba400 r9:83420800 r8:0000003a r7:00000000 r6:00000001 r5:83420800 r4:833aa120 [<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_kdsetmode drivers/tty/vt/vt_ioctl.c:276 [inline]) [<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_k_ioctl drivers/tty/vt/vt_ioctl.c:381 [inline]) [<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_ioctl+0x197c/0x1be8 drivers/tty/vt/vt_ioctl.c:713) r7:83420800 r6:00004b3a r5:86bba400 r4:00000000 [<80951c2c>] (vt_ioctl) from [<8093f890>] (tty_ioctl+0x3c4/0xc1c drivers/tty/tty_io.c:2801) r10:86bba400 r9:00000000 r8:fffff73a r7:86d2f780 r6:86bba400 r5:00004b3a r4:fffffdfd [<8093f4cc>] (tty_ioctl) from [<804f33f4>] (vfs_ioctl fs/ioctl.c:48 [inline]) [<8093f4cc>] (tty_ioctl) from [<804f33f4>] (do_vfs_ioctl fs/ioctl.c:725 [inline]) [<8093f4cc>] (tty_ioctl) from [<804f33f4>] (__do_sys_ioctl fs/ioctl.c:751 [inline]) [<8093f4cc>] (tty_ioctl) from [<804f33f4>] (sys_ioctl+0x120/0xaa4 fs/ioctl.c:739) r10:834e9540 r9:00000005 r8:86d2f780 r7:00000000 r6:86d2f781 r5:00000000 r4:00004b3a [<804f32d4>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x2c arch/arm/mm/proc-v7.S:64) Exception stack(0x86ca7fa8 to 0x86ca7ff0) 7fa0: 00000000 00000000 00000005 00004b3a 00000000 00000000 7fc0: 00000000 00000000 00000000 00000036 7eb4b33a 76fe56d0 7eb4b4ac 76fe520c 7fe0: 76fe5048 76fe5038 00018d58 0004b620 r10:00000036 r9:86ca6000 r8:80200224 r7:00000036 r6:00000000 r5:00000000 r4:00000000 Code: 9a000012 e2853020 e1a02000 e2422008 (e5034020) ---[ end trace 4afa707a05c469f3 ]---