8<--- cut here --- Unable to handle kernel paging request at virtual address e03c4000 pgd = 86d07f40 [e03c4000] *pgd=80000080007003, *pmd=844d8003, *pte=00000000 Internal error: Oops: a07 [#1] PREEMPT SMP ARM Modules linked in: CPU: 0 PID: 10755 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 : 86643ad0 ip : 86643b00 fp : 86643afc r10: 0000a900 r9 : 00000020 r8 : ffffffff r7 : 00000000 r6 : 00000000 r5 : e03c3000 r4 : 00000000 r3 : e03c4020 r2 : 00000140 r1 : 00000020 r0 : 00000548 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 86d07f40 DAC: fffffffd Process syz-executor.0 (pid: 10755, stack limit = 0x86642210) Stack: (0x86643ad0 to 0x86644000) 3ac0: 00000000 8452b400 00000000 e03c3000 3ae0: 0000a900 00000000 808f34c8 00000000 86643b4c 86643b00 808f3340 808f34d4 3b00: 0000a900 00000020 86643b04 56b92eae 8452c134 8452ca1c 00480000 00000000 3b20: 00000000 86643b74 8452b400 00000270 00000090 833a7c6c 833a7c6c 83420800 3b40: 86643b6c 86643b50 809b51b4 808f319c 86643ba4 86643b60 8452b400 00000548 3b60: 86643bac 86643b70 808ed840 809b5178 833a7c6c 00000000 00000090 00000548 3b80: 00000270 00000000 00000000 56b92eae 808ed764 833a7b34 8452ca00 82b5a808 3ba0: 86643bc4 86643bb0 808e7814 808ed770 8452b400 833a7b34 86643cac 86643bc8 3bc0: 808ec8ac 808e77bc 86643c64 8452b400 8452b4a8 00000000 86643c2c 00000400 3be0: 00000300 00000400 00000300 00000000 00000000 00000020 00000000 00000010 3c00: 00000008 00000000 00000008 00000008 00000000 00000000 00000008 00000000 3c20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000001 3c40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3c60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 56b92eae 3c80: 83420800 83420800 00000000 8452ca00 00000001 00000000 8452ca00 00000000 3ca0: 86643ce4 86643cb0 8095bc9c 808ec604 808df644 808df160 00000000 56b92eae 3cc0: 8452b400 8452b400 83420800 8452ca00 00000001 00000000 86643dc4 86643ce8 3ce0: 808ebb40 8095bbc0 86643d04 86643cf8 8181dacc 00000400 00000300 00000400 3d00: 00000300 00000000 00000000 00000020 00000000 00000010 00000008 00000000 3d20: 00000008 00000008 00000000 00000000 00000008 00000000 00000000 00000000 3d40: 00000000 00000000 00000280 00000000 00000000 00000001 00000000 00000000 3d60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3d80: 00000000 00000000 00000000 00000000 00000000 56b92eae 00000001 833aa120 3da0: 83420800 00000001 00000000 0000003a 83420800 86c3d000 86643de4 86643dc8 3dc0: 8095bea8 808eb994 00000000 86c3d000 00004b3a 83420800 86643e64 86643de8 3de0: 809535a8 8095be08 8181dacc 8181d97c 86643e2c 86643e00 8181c9a4 8181dabc 3e00: 00000000 00000000 81f94a4c 00000103 82bfd371 841a63c0 00000006 00000036 3e20: 86643e54 86643e30 8027ea14 8181c88c 00000000 56b92eae 81f94a4c fffffdfd 3e40: 00004b3a 86c3d000 841a63c0 fffff73a 00000000 86c3d000 86643f0c 86643e68 3e60: 8093f890 80951c38 00000000 56b92eae 836e4560 0000003a 837775e8 0000004b 3e80: 00000001 841a63c0 00000006 00000036 86643eec 86643ea0 80701b40 806f7810 3ea0: 00000001 0000004b 0000003a 86643ebc 857d99d0 83851000 00004b3a 841a630b 3ec0: 86643eb0 841a63c0 00000006 56b92eae 821280c8 00000000 841a63c0 56b92eae 3ee0: 86643f0c 00004b3a 00000000 841a63c1 00000000 841a63c0 00000006 837775e8 3f00: 86643fa4 86643f10 804f33f4 8093f4d8 8020d140 8020e34c 00000000 80200e90 3f20: 828a2438 80200e90 86bd0000 80200060 86643f4c 86643f40 8181dacc 8181d97c 3f40: 86643f74 86643f50 8181cb8c 8181dabc 86643f98 80384d84 828abd1c 80200e90 3f60: 60000093 30c5387d 86643f94 86643f78 828abd1c 56b92eae 00000000 00000000 3f80: 00000000 00000000 00000036 80200224 86642000 00000036 00000000 86643fa8 3fa0: 80200060 804f32e0 00000000 00000000 00000006 00004b3a 00000000 00000000 3fc0: 00000000 00000000 00000000 00000036 7eefd332 76f0e6d0 7eefd4ac 76f0e20c 3fe0: 76f0e048 76f0e038 00018bf8 0004b480 60000010 00000006 00000000 00000000 Backtrace: [<808f34c8>] (bitfill_aligned) from [<808f3340>] (sys_fillrect+0x1b0/0x338 drivers/video/fbdev/core/sysfillrect.c:291) r10:00000000 r9:808f34c8 r8:00000000 r7:0000a900 r6:e03c3000 r5:00000000 r4:8452b400 r3:00000000 [<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 r7:00000090 r6:00000270 r5:8452b400 r4:86643b74 [<809b516c>] (drm_fbdev_fb_fillrect) from [<808ed840>] (bit_clear_margins+0xdc/0x104 drivers/video/fbdev/core/bitblit.c:232) r5:00000548 r4:8452b400 [<808ed764>] (bit_clear_margins) from [<808e7814>] (fbcon_clear_margins+0x64/0x68 drivers/video/fbdev/core/fbcon.c:1315) r7:82b5a808 r6:8452ca00 r5:833a7b34 r4:808ed764 [<808e77b0>] (fbcon_clear_margins) from [<808ec8ac>] (fbcon_switch+0x2b4/0x4ac drivers/video/fbdev/core/fbcon.c:2143) r5:833a7b34 r4:8452b400 [<808ec5f8>] (fbcon_switch) from [<8095bc9c>] (redraw_screen+0xe8/0x248 drivers/tty/vt/vt.c:1021) r10:00000000 r9:8452ca00 r8:00000000 r7:00000001 r6:8452ca00 r5:00000000 r4:83420800 [<8095bbb4>] (redraw_screen) from [<808ebb40>] (fbcon_blank+0x1b8/0x250 drivers/video/fbdev/core/fbcon.c:2204) r8:00000000 r7:00000001 r6:8452ca00 r5:83420800 r4:8452b400 [<808eb988>] (fbcon_blank) from [<8095bea8>] (do_unblank_screen+0xac/0x17c drivers/tty/vt/vt.c:4405) r10:86c3d000 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 r5:86c3d000 r4:00000000 [<80951c2c>] (vt_ioctl) from [<8093f890>] (tty_ioctl+0x3c4/0xc1c drivers/tty/tty_io.c:2801) r10:86c3d000 r9:00000000 r8:fffff73a r7:841a63c0 r6:86c3d000 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) r10:837775e8 r9:00000006 r8:841a63c0 r7:00000000 r6:841a63c1 r5:00000000 r4:00004b3a [<804f32d4>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x2c arch/arm/mm/proc-v7.S:64) Exception stack(0x86643fa8 to 0x86643ff0) 3fa0: 00000000 00000000 00000006 00004b3a 00000000 00000000 3fc0: 00000000 00000000 00000000 00000036 7eefd332 76f0e6d0 7eefd4ac 76f0e20c 3fe0: 76f0e048 76f0e038 00018bf8 0004b480 r10:00000036 r9:86642000 r8:80200224 r7:00000036 r6:00000000 r5:00000000 r4:00000000 Code: 9a000012 e2853020 e1a02000 e2422008 (e5034020) ---[ end trace f79396727d73633d ]---