github.com/google/syzkaller@v0.0.0-20240517125934-c0f1611a36d6/pkg/report/testdata/linux/decompile/arm/0.out (about) 1 8<--- cut here --- 2 Unable to handle kernel paging request at virtual address e03c4000 3 pgd = 86c9a3c0 4 [e03c4000] *pgd=80000080007003, *pmd=836b2003, *pte=00000000 5 Internal error: Oops: a07 [#1] PREEMPT SMP ARM 6 Modules linked in: 7 CPU: 1 PID: 7540 Comm: syz-executor.0 Not tainted 5.12.0-rc3-syzkaller #0 8 Hardware name: ARM-Versatile Express 9 PC is at __raw_writel arch/arm/include/asm/io.h:95 [inline] 10 PC is at bitfill_aligned drivers/video/fbdev/core/cfbfillrect.c:65 [inline] 11 PC is at bitfill_aligned+0x94/0x138 drivers/video/fbdev/core/cfbfillrect.c:35 12 LR is at bitfill_aligned drivers/video/fbdev/core/cfbfillrect.c:62 [inline] 13 LR is at bitfill_aligned+0x80/0x138 drivers/video/fbdev/core/cfbfillrect.c:35 14 pc : [<808f355c>] lr : [<808f3548>] psr: 20060013 15 sp : 86cebad0 ip : 86cebb00 fp : 86cebafc 16 r10: 0000ff00 r9 : 00000020 r8 : ffffffff 17 r7 : 00000000 r6 : 00000000 r5 : e03c3000 r4 : 00090000 18 r3 : e03c4020 r2 : 000003f0 r1 : 00000020 r0 : 000007f8 19 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none 20 Control: 30c5387d Table: 86c9a3c0 DAC: 00000000 21 Process syz-executor.0 (pid: 7540, stack limit = 0x86cea210) 22 Stack: (0x86cebad0 to 0x86cec000) 23 bac0: 00090000 844b9000 00000000 e03c3000 24 bae0: 0000ff00 00090000 808f34c8 00000000 86cebb4c 86cebb00 808f3340 808f34d4 25 bb00: 0000ff00 00000020 86cebb04 56b92eae 8409a134 844fe41c 00080000 00000000 26 bb20: 00000000 86cebb74 844b9000 000002f0 00000010 833a7c6c 833a7c6c 83420800 27 bb40: 86cebb6c 86cebb50 809b51b4 808f319c 86cebba4 86cebb60 844b9000 000007f8 28 bb60: 86cebbac 86cebb70 808ed840 809b5178 833a7c6c 00000000 00000010 000007f8 29 bb80: 000002f0 00000000 00000000 56b92eae 808ed764 833a7b34 844fe400 82b5a808 30 bba0: 86cebbc4 86cebbb0 808e7814 808ed770 844b9000 833a7b34 86cebcac 86cebbc8 31 bbc0: 808ec8ac 808e77bc 86cebc64 844b9000 844b90a8 00000000 00000000 00000400 32 bbe0: 00000300 00000400 00000300 00000000 00000000 00000020 00000000 00000010 33 bc00: 00000008 00000000 00000008 00000008 00000000 00000000 00000008 00000000 34 bc20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000001 35 bc40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 36 bc60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 56b92eae 37 bc80: 83420800 83420800 00000000 844fe400 00000001 00000000 844fe400 00000000 38 bca0: 86cebce4 86cebcb0 8095bc9c 808ec604 00000000 00000000 00000000 56b92eae 39 bcc0: 00000000 844b9000 83420800 844fe400 00000001 00000000 86cebdc4 86cebce8 40 bce0: 808ebb40 8095bbc0 86cebd04 86cebcf8 8181dacc 00000400 00000300 00000400 41 bd00: 00000300 00000000 00000000 00000020 00000000 00000010 00000008 00000000 42 bd20: 00000008 00000008 00000000 00000000 00000008 00000000 00000000 00000000 43 bd40: 00000000 00000000 00000280 00000000 00000000 00000001 00000000 00000000 44 bd60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 45 bd80: 00000000 00000000 00000000 00000000 00000000 56b92eae 00000001 833aa120 46 bda0: 83420800 00000001 00000000 0000003a 83420800 86101000 86cebde4 86cebdc8 47 bdc0: 8095bea8 808eb994 00000000 86101000 00004b3a 83420800 86cebe64 86cebde8 48 bde0: 809535a8 8095be08 8181dacc 8181d97c 86cebe2c 86cebe00 8181c9a4 8181dabc 49 be00: 00000000 00000000 81f94a4c 00000103 82bfd371 8550e140 00000003 00000036 50 be20: 86cebe54 86cebe30 8027ea14 8181c88c 00000000 56b92eae 81f94a4c fffffdfd 51 be40: 00004b3a 86101000 8550e140 fffff73a 00000000 86101000 86cebf0c 86cebe68 52 be60: 8093f890 80951c38 00000000 56b92eae 837f97e8 0000003a 8353f2f0 0000004b 53 be80: 00000001 8550e140 00000003 00000036 86cebeec 86cebea0 80701b40 806f7810 54 bea0: 00000001 0000004b 0000003a 86cebebc 858256d0 83dc8180 00004b3a 8550e10b 55 bec0: 86cebeb0 8550e140 00000003 56b92eae 821280c8 00000000 8550e140 56b92eae 56 bee0: 86cebf0c 00004b3a 00000000 8550e141 00000000 8550e140 00000003 8353f2f0 57 bf00: 86cebfa4 86cebf10 804f33f4 8093f4d8 8020d140 8020e34c 00000000 80200e90 58 bf20: 828a2438 80200e90 86d32080 80200060 86cebf4c 86cebf40 8181dacc 8181d97c 59 bf40: 86cebf74 86cebf50 8181cb8c 8181dabc 86cebf98 80384d84 828abd1c 80200e90 60 bf60: 60000093 30c5387d 86cebf94 86cebf78 828abd1c 56b92eae 00000000 00000000 61 bf80: 00000000 ffffffff 00000036 80200224 86cea000 00000036 00000000 86cebfa8 62 bfa0: 80200060 804f32e0 00000000 00000000 00000003 00004b3a 00000000 00000000 63 bfc0: 00000000 00000000 ffffffff 00000036 7ed4733a 76f0f6d0 7ed474ac 76f0f20c 64 bfe0: 76f0f048 76f0f038 00018d58 0004b620 60000010 00000003 00000000 00000000 65 Backtrace: 66 [<808f34c8>] (bitfill_aligned) from [<808f3340>] (sys_fillrect+0x1b0/0x338 drivers/video/fbdev/core/sysfillrect.c:291) 67 r10:00000000 r9:808f34c8 r8:00090000 r7:0000ff00 r6:e03c3000 r5:00000000 68 r4:844b9000 r3:00090000 69 [<808f3190>] (sys_fillrect) from [<809b51b4>] (drm_fb_helper_sys_fillrect drivers/gpu/drm/drm_fb_helper.c:764 [inline]) 70 [<808f3190>] (sys_fillrect) from [<809b51b4>] (drm_fbdev_fb_fillrect+0x48/0x4c drivers/gpu/drm/drm_fb_helper.c:2258) 71 r10:83420800 r9:833a7c6c r8:833a7c6c r7:00000010 r6:000002f0 r5:844b9000 72 r4:86cebb74 73 [<809b516c>] (drm_fbdev_fb_fillrect) from [<808ed840>] (bit_clear_margins+0xdc/0x104 drivers/video/fbdev/core/bitblit.c:232) 74 r5:000007f8 r4:844b9000 75 [<808ed764>] (bit_clear_margins) from [<808e7814>] (fbcon_clear_margins+0x64/0x68 drivers/video/fbdev/core/fbcon.c:1315) 76 r7:82b5a808 r6:844fe400 r5:833a7b34 r4:808ed764 77 [<808e77b0>] (fbcon_clear_margins) from [<808ec8ac>] (fbcon_switch+0x2b4/0x4ac drivers/video/fbdev/core/fbcon.c:2143) 78 r5:833a7b34 r4:844b9000 79 [<808ec5f8>] (fbcon_switch) from [<8095bc9c>] (redraw_screen+0xe8/0x248 drivers/tty/vt/vt.c:1021) 80 r10:00000000 r9:844fe400 r8:00000000 r7:00000001 r6:844fe400 r5:00000000 81 r4:83420800 82 [<8095bbb4>] (redraw_screen) from [<808ebb40>] (fbcon_blank+0x1b8/0x250 drivers/video/fbdev/core/fbcon.c:2204) 83 r8:00000000 r7:00000001 r6:844fe400 r5:83420800 r4:844b9000 84 [<808eb988>] (fbcon_blank) from [<8095bea8>] (do_unblank_screen+0xac/0x17c drivers/tty/vt/vt.c:4405) 85 r10:86101000 r9:83420800 r8:0000003a r7:00000000 r6:00000001 r5:83420800 86 r4:833aa120 87 [<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_kdsetmode drivers/tty/vt/vt_ioctl.c:276 [inline]) 88 [<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_k_ioctl drivers/tty/vt/vt_ioctl.c:381 [inline]) 89 [<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_ioctl+0x197c/0x1be8 drivers/tty/vt/vt_ioctl.c:713) 90 r7:83420800 r6:00004b3a r5:86101000 r4:00000000 91 [<80951c2c>] (vt_ioctl) from [<8093f890>] (tty_ioctl+0x3c4/0xc1c drivers/tty/tty_io.c:2801) 92 r10:86101000 r9:00000000 r8:fffff73a r7:8550e140 r6:86101000 r5:00004b3a 93 r4:fffffdfd 94 [<8093f4cc>] (tty_ioctl) from [<804f33f4>] (vfs_ioctl fs/ioctl.c:48 [inline]) 95 [<8093f4cc>] (tty_ioctl) from [<804f33f4>] (do_vfs_ioctl fs/ioctl.c:725 [inline]) 96 [<8093f4cc>] (tty_ioctl) from [<804f33f4>] (__do_sys_ioctl fs/ioctl.c:751 [inline]) 97 [<8093f4cc>] (tty_ioctl) from [<804f33f4>] (sys_ioctl+0x120/0xaa4 fs/ioctl.c:739) 98 r10:8353f2f0 r9:00000003 r8:8550e140 r7:00000000 r6:8550e141 r5:00000000 99 r4:00004b3a 100 [<804f32d4>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x2c arch/arm/mm/proc-v7.S:64) 101 Exception stack(0x86cebfa8 to 0x86cebff0) 102 bfa0: 00000000 00000000 00000003 00004b3a 00000000 00000000 103 bfc0: 00000000 00000000 ffffffff 00000036 7ed4733a 76f0f6d0 7ed474ac 76f0f20c 104 bfe0: 76f0f048 76f0f038 00018d58 0004b620 105 r10:00000036 r9:86cea000 r8:80200224 r7:00000036 r6:ffffffff r5:00000000 106 r4:00000000 107 Code: 9a000012 e2853020 e1a02000 e2422008 (e5034020) 108 ---[ end trace 10de0daf1584b951 ]--- 109 ---------------- 110 Code disassembly (best guess): 111 0: 9a000012 bls 0x50 112 4: e2853020 add r3, r5, #32 113 8: e1a02000 mov r2, r0 114 c: e2422008 sub r2, r2, #8 115 * 10: e5034020 str r4, [r3, #-32] @ 0xffffffe0 <-- trapping instruction