KCSAN: data-race in sg_fill_request_table / sg_rq_end

ID	Workflow	Result	Correct	Bug	Created	Started	Finished	Revision	Error
76514458-30e0-4046-ada8-ab4d94928f2b	assessment-kcsan		💥	KCSAN: data-race in sg_fill_request_table / sg_rq_end_io (2)	2026/01/10 01:56	2026/01/10 01:56	2026/01/10 02:16	7519916073b761ced56a7b15fdeeb4674e8dc125	Error 429, Message: You exceeded your current quota, please check your plan and billing details. For more information on this error, head to: https://ai.google.dev/gemini-api/docs/rate-limits. To monitor your current usage, head to: https://ai.dev/rate-limit. * Quota exceeded for metric: generativelanguage.googleapis.com/generate_requests_per_model_per_day, limit: 0, Status: RESOURCE_EXHAUSTED, Details: [map[@type:type.googleapis.com/google.rpc.Help links:[map[description:Learn more about Gemini API quotas url:https://ai.google.dev/gemini-api/docs/rate-limits]]] map[@type:type.googleapis.com/google.rpc.QuotaFailure violations:[map[quotaId:GenerateRequestsPerDayPerProjectPerModel quotaMetric:generativelanguage.googleapis.com/generate_requests_per_model_per_day]]] map[@type:type.googleapis.com/google.rpc.DebugInfo detail:[ORIGINAL ERROR] generic::resource_exhausted: You exceeded your current quota, please check your plan and billing details. For more information on this error, head to: https://ai.google.dev/gemini-api/docs/rate-limits. To monitor your current usage, head to: https://ai.dev/rate-limit. * Quota exceeded for metric: generativelanguage.googleapis.com/generate_requests_per_model_per_day, limit: 0 [google.rpc.error_details_ext] { message: "You exceeded your current quota, please check your plan and billing details. For more information on this error, head to: https://ai.google.dev/gemini-api/docs/rate-limits. To monitor your current usage, head to: https://ai.dev/rate-limit. \n* Quota exceeded for metric: generativelanguage.googleapis.com/generate_requests_per_model_per_day, limit: 0" details { type_url: "type.googleapis.com/language_labs.genai.debug.GeminiApiDebugInfo" value: "RM\nK\nEgenerativelanguage.googleapis.com/generate_requests_per_model_per_day\030\000\"\000" } details { [type.googleapis.com/google.rpc.Help] { links { description: "Learn more about Gemini API quotas" url: "https://ai.google.dev/gemini-api/docs/rate-limits" } } } details { [type.googleapis.com/google.rpc.QuotaFailure] { violations { quota_metric: "generativelanguage.googleapis.com/generate_requests_per_model_per_day" quota_id: "GenerateRequestsPerDayPerProjectPerModel" } } } }]]

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in sg_fill_request_table / sg_rq_end_io scsi	6				2	269d	280d	0/29	auto-obsoleted due to no activity on 2025/08/02 18:09

Kernel

Title

Rank 🛈

upstream

KCSAN: data-race in sg_fill_request_table / sg_rq_end_io scsi

269d

280d

0/29

auto-obsoleted due to no activity on 2025/08/02 18:09

================================================================== BUG: KCSAN: data-race in sg_fill_request_table / sg_rq_end_io write to 0xffff88811588c111 of 1 bytes by interrupt on cpu 1: sg_rq_end_io+0x1a2/0x740 drivers/scsi/sg.c:1348 __blk_mq_end_request+0x27e/0x380 block/blk-mq.c:1158 scsi_end_request+0x29c/0x4c0 drivers/scsi/scsi_lib.c:670 scsi_io_completion+0x7f/0x1d0 drivers/scsi/scsi_lib.c:1078 scsi_finish_command+0x1c7/0x1e0 drivers/scsi/scsi.c:198 scsi_complete+0xc3/0x1e0 drivers/scsi/scsi_lib.c:1547 blk_complete_reqs block/blk-mq.c:1243 [inline] blk_done_softirq+0x77/0xb0 block/blk-mq.c:1248 handle_softirqs+0xba/0x290 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0x3a/0xc0 kernel/softirq.c:723 common_interrupt+0x83/0x90 arch/x86/kernel/irq.c:319 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:688 __sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:213 xas_load+0x413/0x430 lib/xarray.c:-1 xas_find+0xf1/0x3e0 lib/xarray.c:1406 xas_next_entry include/linux/xarray.h:-1 [inline] next_uptodate_folio+0x85f/0x890 mm/filemap.c:3684 filemap_map_pages+0xca/0xe50 mm/filemap.c:3867 do_fault_around mm/memory.c:5674 [inline] do_read_fault mm/memory.c:5707 [inline] do_fault mm/memory.c:5850 [inline] do_pte_missing mm/memory.c:4362 [inline] handle_pte_fault mm/memory.c:6234 [inline] __handle_mm_fault mm/memory.c:6366 [inline] handle_mm_fault+0x1355/0x2be0 mm/memory.c:6535 faultin_page mm/gup.c:1126 [inline] __get_user_pages+0x102a/0x1ed0 mm/gup.c:1428 populate_vma_page_range mm/gup.c:1860 [inline] __mm_populate+0x243/0x3a0 mm/gup.c:1963 mm_populate include/linux/mm.h:3455 [inline] vm_mmap_pgoff+0x232/0x2e0 mm/util.c:586 ksys_mmap_pgoff+0xc2/0x310 mm/mmap.c:604 x64_sys_call+0x16bb/0x3000 arch/x86/include/generated/asm/syscalls_64.h:10 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd8/0x2a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff88811588c111 of 1 bytes by task 16419 on cpu 0: sg_fill_request_table+0x65/0x1e0 drivers/scsi/sg.c:865 sg_ioctl_common drivers/scsi/sg.c:1082 [inline] sg_ioctl+0x6b1/0x1360 drivers/scsi/sg.c:1156 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xce/0x140 fs/ioctl.c:583 __x64_sys_ioctl+0x43/0x50 fs/ioctl.c:583 x64_sys_call+0x14b0/0x3000 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd8/0x2a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x00 -> 0x01 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 16419 Comm: syz.7.4029 Tainted: G W syzkaller #0 PREEMPT(voluntary) Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 ================================================================== SELinux: policydb version 0 does not match my version range 15-35 SELinux: failed to load policy

Crashes (2):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2025/12/04 22:37	upstream	559e608c4655	d6526ea3	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-upstream-kcsan-gce	KCSAN: data-race in sg_fill_request_table / sg_rq_end_io
2025/10/28 03:38	upstream	fd57572253bc	fd2207e7	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-upstream-kcsan-gce	KCSAN: data-race in sg_fill_request_table / sg_rq_end_io

Crashes (2):

Assets (help?)