https://bugzilla.kernel.org/show_bug.cgi?id=215529 Bug ID: 215529 Summary: REGRESSION kernel NULL pointer crash in typec_link_ports Product: Drivers Version: 2.5 Kernel Version: 5.17.0-rc1-00032-gdd81e1c7d5fb Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: USB Assignee: drivers_usb@xxxxxxxxxxxxxxxxxxxxxx Reporter: lenb@xxxxxxxxxx Regression: No Created attachment 300311 --> https://bugzilla.kernel.org/attachment.cgi?id=300311&action=edit typec patch from lkml that does NOT help Booting 5.17-rc1 (plus a couple of commits) fails on two of my systems, Dell XPS 13 9360 (FWIW, Linux Torvalds has one of these) Dell XPS 13 9310 (Intel's latest Tiger Lake system) [ 2.965017] ath11k_pci 0000:72:00.0 wlp114s0: renamed from wlan0 [ 3.046448] systemd-journald[302]: File /var/log/journal/5ce4de201d294a6db31ace17ae52adb8/user-1000.journal corrupted or uncleanly shut down, renaming and replacing. [ 3.111468] BUG: kernel NULL pointer dereference, address: 0000000000000008 [ 3.111472] #PF: supervisor read access in kernel mode [ 3.111474] #PF: error_code(0x0000) - not-present page [ 3.111475] PGD 0 P4D 0 [ 3.111477] Oops: 0000 [#1] PREEMPT SMP NOPTI [ 3.111479] CPU: 4 PID: 314 Comm: kworker/4:2 Not tainted 5.17.0-rc1-00032-gdd81e1c7d5fb-dirty #10 [ 3.111481] Hardware name: Dell Inc. XPS 13 9310/0202R4, BIOS 3.2.0 09/30/2021 [ 3.111483] Workqueue: events_long ucsi_init_work [typec_ucsi] [ 3.111489] RIP: 0010:component_master_add_with_match+0x19/0x100 [ 3.111494] Code: 5b 41 5c 5d c3 66 66 2e 0f 1f 84 00 00 00 00 00 90 0f 1f 44 00 00 55 48 89 e5 41 56 49 89 fe 41 55 49 89 d5 41 54 53 48 89 f3 <48> 8b 72 08 48 3b 32 74 10 48 89 d7 e8 06 fd ff ff 85 c0 0f 85 a0 [ 3.111496] RSP: 0018:ffffb26080a57d88 EFLAGS: 00010296 [ 3.111498] RAX: 0000000000000000 RBX: ffffffffc03dea30 RCX: 0000000000000000 [ 3.111499] RDX: 0000000000000000 RSI: ffffffffc03dea30 RDI: ffff932988db7808 [ 3.111500] RBP: ffffb26080a57da8 R08: ffff9329802aaaa0 R09: ffff932981f8f030 [ 3.111502] R10: ffff93299e85b000 R11: 0000000000000000 R12: ffff932988db7800 [ 3.111503] R13: 0000000000000000 R14: ffff932988db7808 R15: ffff932988db7808 [ 3.111504] FS: 0000000000000000(0000) GS:ffff9330ef700000(0000) knlGS:0000000000000000 [ 3.111505] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.111507] CR2: 0000000000000008 CR3: 0000000256e10002 CR4: 0000000000770ee0 [ 3.111508] PKRU: 55555554 [ 3.111509] Call Trace: [ 3.111511] <TASK> [ 3.111514] typec_link_ports+0x6f/0x90 [typec] [ 3.111520] typec_register_port+0x1d4/0x2d0 [typec] [ 3.111525] ucsi_init_work+0x401/0x720 [typec_ucsi] [ 3.111529] process_one_work+0x21a/0x3f0 [ 3.111533] worker_thread+0x50/0x3d0 [ 3.111535] ? rescuer_thread+0x360/0x360 [ 3.111537] kthread+0xfa/0x120 [ 3.111539] ? kthread_complete_and_exit+0x20/0x20 [ 3.111541] ret_from_fork+0x1f/0x30 [ 3.111545] </TASK> -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
