8<--- cut here --- Unable to handle kernel paging request at virtual address e03c4000 pgd = 86dcaec0 [e03c4000] *pgd=80000080007003, *pmd=841cf003, *pte=00000000 Internal error: Oops: a07 [#1] PREEMPT SMP ARM Modules linked in: CPU: 0 PID: 15157 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 : 86dd1ad0 ip : 86dd1b00 fp : 86dd1afc r10: 00400000 r9 : 00000020 r8 : ffffffff r7 : 00000000 r6 : 00000000 r5 : e0345000 r4 : 00010000 r3 : e03c4020 r2 : 000003f8 r1 : 00000020 r0 : 00020000 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 86dcaec0 DAC: fffffffd Process syz-executor.0 (pid: 15157, stack limit = 0x86dd0210) Stack: (0x86dd1ad0 to 0x86dd2000) 1ac0: 00010000 844cd800 0000007e e0345000 1ae0: 00400000 00010000 808f34c8 00000000 86dd1b4c 86dd1b00 808f3340 808f34d4 1b00: 00400000 00000020 86dd1b04 56b92eae 840a7134 844ec01c 00180000 00000000 1b20: 00000000 86dd1b74 844cd800 000002d0 00000030 833a7c6c 833a7c6c 83420800 1b40: 86dd1b6c 86dd1b50 809b51b4 808f319c 86dd1ba4 86dd1b60 844cd800 00020000 1b60: 86dd1bac 86dd1b70 808ed840 809b5178 833a7c6c 00000000 00000030 00020000 1b80: 000002d0 00000000 00000000 56b92eae 808ed764 833a7b34 844ec000 82b5a808 1ba0: 86dd1bc4 86dd1bb0 808e7814 808ed770 844cd800 833a7b34 86dd1cac 86dd1bc8 1bc0: 808ec8ac 808e77bc 86dd1c64 844cd800 844cd8a8 00000000 00000000 00000400 1be0: 00000300 00000400 00000300 00000000 00000000 00000020 00000000 00000010 1c00: 00000008 00000000 00000008 00000008 00000000 00000000 00000008 00000000 1c20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000001 1c40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1c60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 56b92eae 1c80: 83420800 83420800 00000000 844ec000 00000001 00000000 844ec000 00000000 1ca0: 86dd1ce4 86dd1cb0 8095bc9c 808ec604 00000000 00000000 00000000 56b92eae 1cc0: 00000000 844cd800 83420800 844ec000 00000001 00000000 86dd1dc4 86dd1ce8 1ce0: 808ebb40 8095bbc0 86dd1d04 86dd1cf8 8181dacc 00000400 00000300 00000400 1d00: 00000300 00000000 00000000 00000020 00000000 00000010 00000008 00000000 1d20: 00000008 00000008 00000000 00000000 00000008 00000000 00000000 00000000 1d40: 00000000 00000000 00000280 00000000 00000000 00000001 00000000 00000000 1d60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1d80: 00000000 00000000 00000000 00000000 00000000 56b92eae 00000001 833aa120 1da0: 83420800 00000001 00000000 0000003a 83420800 864a6400 86dd1de4 86dd1dc8 1dc0: 8095bea8 808eb994 00000000 864a6400 00004b3a 83420800 86dd1e64 86dd1de8 1de0: 809535a8 8095be08 8181dacc 8181d97c 86dd1e2c 86dd1e00 8181c9a4 8181dabc 1e00: 00000000 00000000 81f94a4c 00000103 82bfd371 864b2640 00000004 00000036 1e20: 86dd1e54 86dd1e30 8027ea14 8181c88c 00000000 56b92eae 81f94a4c fffffdfd 1e40: 00004b3a 864a6400 864b2640 fffff73a 00000000 864a6400 86dd1f0c 86dd1e68 1e60: 8093f890 80951c38 00000000 56b92eae 84006560 0000003a 8378f5e8 0000004b 1e80: 00000001 864b2640 00000004 00000036 86dd1eec 86dd1ea0 80701b40 806f7810 1ea0: 00000001 0000004b 0000003a 86dd1ebc 85a756d0 83dd23c0 00004b3a 864b260b 1ec0: 86dd1eb0 864b2640 00000004 56b92eae 821280c8 00000000 864b2640 56b92eae 1ee0: 86dd1f0c 00004b3a 00000000 864b2641 00000000 864b2640 00000004 8378f5e8 1f00: 86dd1fa4 86dd1f10 804f33f4 8093f4d8 8020d140 8020e34c 00000000 80200e90 1f20: 828a2438 80200e90 86c99040 80200060 86dd1f4c 86dd1f40 8181dacc 8181d97c 1f40: 86dd1f74 86dd1f50 8181cb8c 8181dabc 86dd1f98 80384d84 828abd1c 80200e90 1f60: 60000093 30c5387d 86dd1f94 86dd1f78 828abd1c 56b92eae 00000000 00000000 1f80: 00000000 00000000 00000036 80200224 86dd0000 00000036 00000000 86dd1fa8 1fa0: 80200060 804f32e0 00000000 00000000 00000004 00004b3a 00000000 00000000 1fc0: 00000000 00000000 00000000 00000036 7ec30332 76efc6d0 7ec304ac 76efc20c 1fe0: 76efc048 76efc038 00018c00 0004b490 60000010 00000004 00000000 00000000 Backtrace: [<808f34c8>] (bitfill_aligned) from [<808f3340>] (sys_fillrect+0x1b0/0x338 drivers/video/fbdev/core/sysfillrect.c:291) r10:00000000 r9:808f34c8 r8:00010000 r7:00400000 r6:e0345000 r5:0000007e r4:844cd800 r3:00010000 [<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 r7:00000030 r6:000002d0 r5:844cd800 r4:86dd1b74 [<809b516c>] (drm_fbdev_fb_fillrect) from [<808ed840>] (bit_clear_margins+0xdc/0x104 drivers/video/fbdev/core/bitblit.c:232) r5:00020000 r4:844cd800 [<808ed764>] (bit_clear_margins) from [<808e7814>] (fbcon_clear_margins+0x64/0x68 drivers/video/fbdev/core/fbcon.c:1315) r7:82b5a808 r6:844ec000 r5:833a7b34 r4:808ed764 [<808e77b0>] (fbcon_clear_margins) from [<808ec8ac>] (fbcon_switch+0x2b4/0x4ac drivers/video/fbdev/core/fbcon.c:2143) r5:833a7b34 r4:844cd800 [<808ec5f8>] (fbcon_switch) from [<8095bc9c>] (redraw_screen+0xe8/0x248 drivers/tty/vt/vt.c:1021) r10:00000000 r9:844ec000 r8:00000000 r7:00000001 r6:844ec000 r5:00000000 r4:83420800 [<8095bbb4>] (redraw_screen) from [<808ebb40>] (fbcon_blank+0x1b8/0x250 drivers/video/fbdev/core/fbcon.c:2204) r8:00000000 r7:00000001 r6:844ec000 r5:83420800 r4:844cd800 [<808eb988>] (fbcon_blank) from [<8095bea8>] (do_unblank_screen+0xac/0x17c drivers/tty/vt/vt.c:4405) r10:864a6400 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 r5:864a6400 r4:00000000 [<80951c2c>] (vt_ioctl) from [<8093f890>] (tty_ioctl+0x3c4/0xc1c drivers/tty/tty_io.c:2801) r10:864a6400 r9:00000000 r8:fffff73a r7:864b2640 r6:864a6400 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) r10:8378f5e8 r9:00000004 r8:864b2640 r7:00000000 r6:864b2641 r5:00000000 r4:00004b3a [<804f32d4>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x2c arch/arm/mm/proc-v7.S:64) Exception stack(0x86dd1fa8 to 0x86dd1ff0) 1fa0: 00000000 00000000 00000004 00004b3a 00000000 00000000 1fc0: 00000000 00000000 00000000 00000036 7ec30332 76efc6d0 7ec304ac 76efc20c 1fe0: 76efc048 76efc038 00018c00 0004b490 r10:00000036 r9:86dd0000 r8:80200224 r7:00000036 r6:00000000 r5:00000000 r4:00000000 Code: 9a000012 e2853020 e1a02000 e2422008 (e5034020) ---[ end trace 0f5f9b3cdb5c30f9 ]---