Control: tags -1 + moreinfo upstream Hi On Thu, Dec 25, 2025 at 04:27:25PM +0100, [email protected] wrote: > Package: src:linux > Version: 6.17.13-1 > Severity: normal > > Dear Maintainer, > > * What led up to the situation? > Kernel oops during boot if the USB-C power cord is plugged in (or when the > USB-C power cord is plugged in after a boot on battery). > This happens also with the kernels 6.16.x. > > [ +1,022859] ------------[ cut here ]------------ > [ +0,000008] UBSAN: array-index-out-of-bounds in > /build/reproducible-path/linux-6.17.13/drivers/usb/typec/ucsi/ucsi.c:605:12 > [ +0,001186] index 2 is out of range for type 'ucsi_altmode [2]' > [ +0,000578] CPU: 10 UID: 0 PID: 275 Comm: kworker/10:1 Not tainted > 6.17.13+deb14-amd64 #1 PREEMPT(lazy) Debian 6.17.13-1 > [ +0,000005] Hardware name: LENOVO 83J3/LNVNB161216, BIOS PYCN30WW 11/17/2025 > [ +0,000002] Workqueue: events_long ucsi_init_work [typec_ucsi] > [ +0,000010] Call Trace: > [ +0,000003] <TASK> > [ +0,000003] dump_stack_lvl+0x5d/0x80 > [ +0,000007] ubsan_epilogue+0x5/0x2b > [ +0,000005] __ubsan_handle_out_of_bounds.cold+0x54/0x59 > [ +0,000007] ucsi_register_altmodes+0x214/0x250 [typec_ucsi] > [ +0,000007] ucsi_check_altmodes+0x1b/0xa0 [typec_ucsi] > [ +0,000004] ucsi_init_work+0x919/0x9b0 [typec_ucsi] > [ +0,000005] process_one_work+0x192/0x350 > [ +0,000006] worker_thread+0x25a/0x3a0 > [ +0,000004] ? __pfx_worker_thread+0x10/0x10 > [ +0,000003] kthread+0xfc/0x240 > [ +0,000003] ? __pfx_kthread+0x10/0x10 > [ +0,000002] ? __pfx_kthread+0x10/0x10 > [ +0,000002] ret_from_fork+0x197/0x1c0 > [ +0,000005] ? __pfx_kthread+0x10/0x10 > [ +0,000002] ret_from_fork_asm+0x1a/0x30 > [ +0,000008] </TASK> > [ +0,000001] ---[ end trace ]--- > [ +0,000006] ------------[ cut here ]------------ > [ +0,000002] UBSAN: array-index-out-of-bounds in > /build/reproducible-path/linux-6.17.13/drivers/usb/typec/ucsi/ucsi.c:609:18 > [ +0,000579] index 2 is out of range for type 'ucsi_altmode [2]' > [ +0,000562] CPU: 10 UID: 0 PID: 275 Comm: kworker/10:1 Not tainted > 6.17.13+deb14-amd64 #1 PREEMPT(lazy) Debian 6.17.13-1 > [ +0,000003] Hardware name: LENOVO 83J3/LNVNB161216, BIOS PYCN30WW 11/17/2025 > [ +0,000001] Workqueue: events_long ucsi_init_work [typec_ucsi] > [ +0,000005] Call Trace: > [ +0,000001] <TASK> > [ +0,000001] dump_stack_lvl+0x5d/0x80 > [ +0,000004] ubsan_epilogue+0x5/0x2b > [ +0,000003] __ubsan_handle_out_of_bounds.cold+0x54/0x59 > [ +0,000005] ucsi_register_altmodes+0x233/0x250 [typec_ucsi] > [ +0,000006] ucsi_check_altmodes+0x1b/0xa0 [typec_ucsi] > [ +0,000004] ucsi_init_work+0x919/0x9b0 [typec_ucsi] > [ +0,000005] process_one_work+0x192/0x350 > [ +0,000004] worker_thread+0x25a/0x3a0 > [ +0,000004] ? __pfx_worker_thread+0x10/0x10 > [ +0,000003] kthread+0xfc/0x240 > [ +0,000002] ? __pfx_kthread+0x10/0x10 > [ +0,000002] ? __pfx_kthread+0x10/0x10 > [ +0,000003] ret_from_fork+0x197/0x1c0 > [ +0,000003] ? __pfx_kthread+0x10/0x10 > [ +0,000002] ret_from_fork_asm+0x1a/0x30 > [ +0,000006] </TASK> > [ +0,000001] ---[ end trace ]--- > [ +0,000006] ------------[ cut here ]------------ > [ +0,000001] UBSAN: array-index-out-of-bounds in > /build/reproducible-path/linux-6.17.13/drivers/usb/typec/ucsi/ucsi.c:610:19 > [ +0,000608] index 2 is out of range for type 'ucsi_altmode [2]' > [ +0,000597] CPU: 10 UID: 0 PID: 275 Comm: kworker/10:1 Not tainted > 6.17.13+deb14-amd64 #1 PREEMPT(lazy) Debian 6.17.13-1 > [ +0,000003] Hardware name: LENOVO 83J3/LNVNB161216, BIOS PYCN30WW 11/17/2025 > [ +0,000001] Workqueue: events_long ucsi_init_work [typec_ucsi] > [ +0,000004] Call Trace: > [ +0,000002] <TASK> > [ +0,000001] dump_stack_lvl+0x5d/0x80 > [ +0,000004] ubsan_epilogue+0x5/0x2b > [ +0,000003] __ubsan_handle_out_of_bounds.cold+0x54/0x59 > [ +0,000004] ucsi_register_altmodes+0x1fa/0x250 [typec_ucsi] > [ +0,000006] ucsi_check_altmodes+0x1b/0xa0 [typec_ucsi] > [ +0,000004] ucsi_init_work+0x919/0x9b0 [typec_ucsi] > [ +0,000006] process_one_work+0x192/0x350 > [ +0,000004] worker_thread+0x25a/0x3a0 > [ +0,000003] ? __pfx_worker_thread+0x10/0x10 > [ +0,000003] kthread+0xfc/0x240 > [ +0,000002] ? __pfx_kthread+0x10/0x10 > [ +0,000002] ? __pfx_kthread+0x10/0x10 > [ +0,000003] ret_from_fork+0x197/0x1c0 > [ +0,000003] ? __pfx_kthread+0x10/0x10 > [ +0,000002] ret_from_fork_asm+0x1a/0x30 > [ +0,000006] </TASK> > [ +0,000001] ---[ end trace ]--- > > > * What exactly did you do (or not do) that was effective (or > ineffective)? > As mentionned above it happens when the USB-C power cord is plugged in. > No oops if the laptop stays on battery. > > * What was the outcome of this action? > The laptop seems still usable but for somme reason it delays the wifi > association with iwd. > I guess because its happens when iwd starts. > Updating the bios does not solve the problem. > * What outcome did you expect instead? > No oops
Can you verify if this still happens with 6.18.2-1~exp1 in experimental (and ideally as well tested explicitly with mainline)? Regards, Salvatore
