From: bugzilla-daemon@kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 220428] New: UBSAN array-index-out-of-bounds warning in radeon_atombios.c on kernel 6.15.9 with AMD Radeon HD 6250
Date: Sat, 09 Aug 2025 04:45:01 +0000 [thread overview]
Message-ID: <bug-220428-2300@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=220428
Bug ID: 220428
Summary: UBSAN array-index-out-of-bounds warning in
radeon_atombios.c on kernel 6.15.9 with AMD Radeon HD
6250
Product: Drivers
Version: 2.5
Kernel Version: 6.15.9
Hardware: AMD
OS: Linux
Status: NEW
Severity: normal
Priority: P3
Component: Video(DRI - non Intel)
Assignee: drivers_video-dri@kernel-bugs.osdl.org
Reporter: dutra.astro@gmail.com
Regression: No
[ 17.138975] ------------[ cut here ]------------
[ 17.138980] UBSAN: array-index-out-of-bounds in
drivers/gpu/drm/radeon/radeon_atombios.c:2720:34
[ 17.138991] index 16 is out of range for type 'UCHAR [*]'
[ 17.139004] CPU: 1 UID: 0 PID: 544 Comm: (udev-worker) Not tainted
6.15.9-201.fc42.x86_64 #1 PREEMPT(lazy)
[ 17.139016] Hardware name: Acer Aspire 5250/JE50-BZ, BIOS V1.08 09/26/2012
[ 17.139022] Call Trace:
[ 17.139031] <TASK>
[ 17.139041] dump_stack_lvl+0x5d/0x80
[ 17.139060] ubsan_epilogue+0x5/0x2b
[ 17.139070] __ubsan_handle_out_of_bounds.cold+0x54/0x59
[ 17.139086] radeon_atombios_parse_power_table_6+0x3bc/0x3e0 [radeon]
[ 17.139581] radeon_atombios_get_power_modes+0x220/0x240 [radeon]
[ 17.139977] radeon_pm_init_dpm+0x77/0x240 [radeon]
[ 17.140428] evergreen_init+0x154/0x2b0 [radeon]
[ 17.140885] radeon_device_init+0x484/0xa60 [radeon]
[ 17.141275] ? pci_find_capability+0x79/0xb0
[ 17.141288] radeon_driver_load_kms+0xa6/0x230 [radeon]
[ 17.141681] radeon_pci_probe+0xef/0x1b0 [radeon]
[ 17.142069] local_pci_probe+0x42/0x90
[ 17.142081] pci_call_probe+0x5b/0x190
[ 17.142090] ? kernfs_create_link+0x61/0xb0
[ 17.142106] pci_device_probe+0x95/0x140
[ 17.142117] really_probe+0xde/0x340
[ 17.142128] ? pm_runtime_barrier+0x55/0x90
[ 17.142141] __driver_probe_device+0x78/0x140
[ 17.142152] driver_probe_device+0x1f/0xa0
[ 17.142164] ? __pfx___driver_attach+0x10/0x10
[ 17.142173] __driver_attach+0xcb/0x1e0
[ 17.142185] bus_for_each_dev+0x85/0xd0
[ 17.142197] bus_add_driver+0x12f/0x210
[ 17.142209] ? __pfx_radeon_module_init+0x10/0x10 [radeon]
[ 17.142604] driver_register+0x75/0xe0
[ 17.142613] ? radeon_register_atpx_handler+0xe/0x30 [radeon]
[ 17.143030] do_one_initcall+0x5b/0x300
[ 17.143052] do_init_module+0x84/0x260
[ 17.143064] init_module_from_file+0x8a/0xe0
[ 17.143081] idempotent_init_module+0x114/0x310
[ 17.143095] __x64_sys_finit_module+0x67/0xc0
[ 17.143107] do_syscall_64+0x7b/0x160
[ 17.143119] ? syscall_exit_to_user_mode+0x10/0x210
[ 17.143141] ? vfs_read+0x160/0x390
[ 17.143150] ? vfs_read+0x160/0x390
[ 17.143163] ? ksys_read+0x73/0xe0
[ 17.143172] ? syscall_exit_to_user_mode+0x10/0x210
[ 17.143182] ? do_syscall_64+0x87/0x160
[ 17.143195] ? syscall_exit_to_user_mode+0x10/0x210
[ 17.143206] ? do_syscall_64+0x87/0x160
[ 17.143214] ? exc_page_fault+0x7e/0x1a0
[ 17.143224] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 17.143235] RIP: 0033:0x7f924c636a4d
[ 17.143255] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89
f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01
f0 ff ff 73 01 c3 48 8b 0d 83 53 0f 00 f7 d8 64 89 01 48
[ 17.143263] RSP: 002b:00007ffcb7ab1498 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
[ 17.143274] RAX: ffffffffffffffda RBX: 00005643357c7350 RCX:
00007f924c636a4d
[ 17.143280] RDX: 0000000000000004 RSI: 00007f924b0ec965 RDI:
000000000000002b
[ 17.143285] RBP: 00007ffcb7ab1550 R08: 0000000000000000 R09:
00007ffcb7ab1500
[ 17.143290] R10: 0000000000000000 R11: 0000000000000246 R12:
0000000000020000
[ 17.143294] R13: 00005643357ca790 R14: 00007f924b0ec965 R15:
0000000000000000
[ 17.143306] </TASK>
[ 17.143470] ---[ end trace ]---
Since this is a Kernel video driver problem, I am reporting here and not
elsewhere.
This MAY be related to https://bugzilla.kernel.org/show_bug.cgi?id=218435
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next reply other threads:[~2025-08-09 4:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-09 4:45 bugzilla-daemon [this message]
2025-09-18 10:44 ` [Bug 220428] UBSAN array-index-out-of-bounds warning in radeon_atombios.c on kernel 6.15.9 with AMD Radeon HD 6250 bugzilla-daemon
2025-09-18 10:46 ` bugzilla-daemon
2026-01-21 14:49 ` bugzilla-daemon
2026-01-22 12:26 ` bugzilla-daemon
2026-01-22 15:27 ` bugzilla-daemon
2026-01-22 16:05 ` bugzilla-daemon
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