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BUG: corrupted list in io_poll_remove_entries

Status: upstream: reported C repro on 2026/02/09 18:26
Subsystems: media
[Documentation on labels]
Reported-by: syzbot+ab12f0c08dd7ab8d057c@syzkaller.appspotmail.com
Fix commit: bfbc0b5b32a8 media: dvb-core: fix wrong reinitialization of ringbuffer on reopen
Patched on: [ci-qemu-gce-upstream-auto ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-snapshot-upstream-root ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-badwrites-root ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce-386-root ci-upstream-kmsan-gce-root ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci-upstream-rust-kasan-gce ci2-upstream-fs ci2-upstream-kcsan-gce], missing on: [ci-qemu-native-arm64-kvm ci-qemu2-riscv64 ci-upstream-gce-arm64 ci2-upstream-usb]
First crash: 29d, last: 16d
▶ ▼ ✨ AI Jobs (18)
ID Workflow Result Correct Bug Created Started Finished Revision Error
bd7dc79a-d940-45ef-8442-32458b345025 patching 💥 BUG: corrupted list in io_poll_remove_entries 2026/02/15 03:32 2026/02/15 03:32 2026/02/15 04:31 unknown 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. , 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.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. [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. " details { type_url: "type.googleapis.com/language_labs.genai.debug.GeminiApiDebugInfo" value: "R\210\001\n\205\001\nTgenerativelanguage.googleapis.com/generate_content_paid_tier_1_input_tokens_internal\022\022\n\010location\022\006global\022\025\n\005model\022\014gemini-3-pro\030\300\204=" } 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" } } } }]]
911d57db-8216-4b94-b598-cc30743f8b33 patching 🏃 BUG: corrupted list in io_poll_remove_entries 2026/02/13 13:25 2026/02/13 13:25 54290dbc8f9e8d4533df2bb39cf823e93897fb2c
9f8ce044-c5e3-4556-88a3-f7ebb56bea12 patching 💥 BUG: corrupted list in io_poll_remove_entries 2026/02/13 13:25 2026/02/13 13:25 2026/02/13 13:28 unknown 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. , 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.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. [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. " details { type_url: "type.googleapis.com/language_labs.genai.debug.GeminiApiDebugInfo" value: "R\210\001\n\205\001\nTgenerativelanguage.googleapis.com/generate_content_paid_tier_1_input_tokens_internal\022\022\n\010location\022\006global\022\025\n\005model\022\014gemini-3-pro\030\300\204=" } 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" } } } }]]
62e9826b-6a8b-4ae5-9091-50e08baf2ef3 patching-summary 💥 BUG: corrupted list in io_poll_remove_entries 2026/02/13 12:59 2026/02/13 13:02 2026/02/13 13:04 unknown Error 400, Message: * GenerateContentRequest.contents[8].parts[0].data: required oneof field 'data' must have one initialized field , Status: INVALID_ARGUMENT, Details: [map[@type:type.googleapis.com/google.rpc.DebugInfo detail:[ORIGINAL ERROR] generic::invalid_argument: * GenerateContentRequest.contents[8].parts[0].data: required oneof field 'data' must have one initialized field [google.rpc.error_details_ext] { message: "* GenerateContentRequest.contents[8].parts[0].data: required oneof field \'data\' must have one initialized field\n" details { type_url: "type.googleapis.com/language_labs.genai.debug.GeminiApiDebugInfo" value: "\242\001\250\001\np* GenerateContentRequest.contents[8].parts[0].data: required oneof field \'data\' must have one initialized field\n\0224net/proto2/contrib/validator/validator_util.cc:117:0" } }]]
4b02474c-4a82-4a73-aea4-2aa306da9302 patching 💥 BUG: corrupted list in io_poll_remove_entries 2026/02/13 12:59 2026/02/13 12:59 2026/02/13 13:02 unknown 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. , 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.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. [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. " details { type_url: "type.googleapis.com/language_labs.genai.debug.GeminiApiDebugInfo" value: "R\210\001\n\205\001\nTgenerativelanguage.googleapis.com/generate_content_paid_tier_1_input_tokens_internal\022\022\n\010location\022\006global\022\025\n\005model\022\014gemini-3-pro\030\300\204=" } 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" } } } }]]
aa5819f1-0829-48b6-b463-120b5f1c2551 patching-summary 💥 BUG: corrupted list in io_poll_remove_entries 2026/02/13 12:38 2026/02/13 12:41 2026/02/13 12:42 unknown Error 400, Message: * GenerateContentRequest.contents[8].parts[0].data: required oneof field 'data' must have one initialized field , Status: INVALID_ARGUMENT, Details: [map[@type:type.googleapis.com/google.rpc.DebugInfo detail:[ORIGINAL ERROR] generic::invalid_argument: * GenerateContentRequest.contents[8].parts[0].data: required oneof field 'data' must have one initialized field [google.rpc.error_details_ext] { message: "* GenerateContentRequest.contents[8].parts[0].data: required oneof field \'data\' must have one initialized field\n" details { type_url: "type.googleapis.com/language_labs.genai.debug.GeminiApiDebugInfo" value: "\242\001\250\001\np* GenerateContentRequest.contents[8].parts[0].data: required oneof field \'data\' must have one initialized field\n\0224net/proto2/contrib/validator/validator_util.cc:117:0" } }]]
5beb8e96-5311-4a0c-8ffd-ace3590566df patching 💥 BUG: corrupted list in io_poll_remove_entries 2026/02/13 12:37 2026/02/13 12:38 2026/02/13 12:40 unknown 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. , 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.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. [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. " details { type_url: "type.googleapis.com/language_labs.genai.debug.GeminiApiDebugInfo" value: "R\210\001\n\205\001\nTgenerativelanguage.googleapis.com/generate_content_paid_tier_1_input_tokens_internal\022\022\n\010location\022\006global\022\025\n\005model\022\014gemini-3-pro\030\300\204=" } 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" } } } }]]
e81434b6-4bd7-4067-afb9-304548cd61e6 patching 💥 BUG: corrupted list in io_poll_remove_entries 2026/02/13 04:02 2026/02/13 04:02 2026/02/13 04:07 unknown 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. , 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.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. [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. " details { type_url: "type.googleapis.com/language_labs.genai.debug.GeminiApiDebugInfo" value: "R\210\001\n\205\001\nTgenerativelanguage.googleapis.com/generate_content_paid_tier_1_input_tokens_internal\022\022\n\010location\022\006global\022\025\n\005model\022\014gemini-3-pro\030\300\204=" } 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" } } } }]]
eef818fc-144e-40fb-97a4-19c741ccfd60 patching-summary 💥 BUG: corrupted list in io_poll_remove_entries 2026/02/13 01:17 2026/02/13 01:17 2026/02/13 03:28 unknown Error 400, Message: * GenerateContentRequest.contents[8].parts[0].data: required oneof field 'data' must have one initialized field , Status: INVALID_ARGUMENT, Details: [map[@type:type.googleapis.com/google.rpc.DebugInfo detail:[ORIGINAL ERROR] generic::invalid_argument: * GenerateContentRequest.contents[8].parts[0].data: required oneof field 'data' must have one initialized field [google.rpc.error_details_ext] { message: "* GenerateContentRequest.contents[8].parts[0].data: required oneof field \'data\' must have one initialized field\n" details { type_url: "type.googleapis.com/language_labs.genai.debug.GeminiApiDebugInfo" value: "\242\001\250\001\np* GenerateContentRequest.contents[8].parts[0].data: required oneof field \'data\' must have one initialized field\n\0224net/proto2/contrib/validator/validator_util.cc:117:0" } }]]
ded97f95-a124-4516-93b5-5ece24a8a383 patching 💥 BUG: corrupted list in io_poll_remove_entries 2026/02/12 23:53 2026/02/12 23:53 2026/02/12 23:56 unknown 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. , 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.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. [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. " details { type_url: "type.googleapis.com/language_labs.genai.debug.GeminiApiDebugInfo" value: "R\210\001\n\205\001\nTgenerativelanguage.googleapis.com/generate_content_paid_tier_1_input_tokens_internal\022\022\n\010location\022\006global\022\025\n\005model\022\014gemini-3-pro\030\300\204=" } 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" } } } }]]
cc9adb52-50bb-4f70-827b-929db7220cc1 patching 🏃 BUG: corrupted list in io_poll_remove_entries 2026/02/12 17:10 2026/02/12 17:10 unknown
dd7f95ff-f8ec-4f40-a2ce-25187666555d patching 💥 BUG: corrupted list in io_poll_remove_entries 2026/02/12 16:25 2026/02/12 16:25 2026/02/12 16:50 unknown set GOOGLE_API_KEY env var to use with Gemini (see https://ai.google.dev/gemini-api/docs/api-key)
3ce649d1-e388-44ef-bc22-6090ce0f7aa4 patching 💥 BUG: corrupted list in io_poll_remove_entries 2026/02/10 17:48 2026/02/10 18:09 2026/02/10 18:10 unknown fork/exec ./syz-agent: no such file or directory
a7b38802-5806-4dad-b8bb-fbcbbeedeae6 patching 💥 BUG: corrupted list in io_poll_remove_entries 2026/02/10 17:48 2026/02/10 17:48 2026/02/10 18:09 unknown fork/exec ./syz-agent: no such file or directory
8e4e7d72-b62a-4af3-9440-140e0b7298fa patching-summary 💥 BUG: corrupted list in io_poll_remove_entries 2026/02/10 10:47 2026/02/10 10:47 2026/02/10 10:47 91d776d358daef41852d3c6541e561a616f5f523+ drivers/gpu/drm/drm_panel.c: exit status 1 Error while trying to load a compilation database: Could not auto-detect compilation database from directory "/usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/build/188b4fe38cca23d418ba566d5d2364d79b3cdb13/compile_commands.json" No compilation database found in /usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/build/188b4fe38cca23d418ba566d5d2364d79b3cdb13/compile_commands.json or any parent directory Running without flags. /usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/src/a24e0351858b280a0e17500759ec155b5ad3e184/drivers/gpu/drm/drm_panel.c:24:10: fatal error: 'linux/backlight.h' file not found 24 | #include <linux/backlight.h> | ^~~~~~~~~~~~~~~~~~~ 1 error generated. Error while processing /usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/src/a24e0351858b280a0e17500759ec155b5ad3e184/drivers/gpu/drm/drm_panel.c.
91c3ac4b-1676-44b6-b966-3b1843c067ab patching 💥 BUG: corrupted list in io_poll_remove_entries 2026/02/10 10:47 2026/02/10 10:47 2026/02/10 10:47 91d776d358daef41852d3c6541e561a616f5f523+ virt/kvm/irqchip.c: exit status 1 Error while trying to load a compilation database: Could not auto-detect compilation database from directory "/usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/build/188b4fe38cca23d418ba566d5d2364d79b3cdb13/compile_commands.json" No compilation database found in /usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/build/188b4fe38cca23d418ba566d5d2364d79b3cdb13/compile_commands.json or any parent directory Running without flags. /usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/src/a24e0351858b280a0e17500759ec155b5ad3e184/virt/kvm/irqchip.c:15:10: fatal error: 'linux/kvm_host.h' file not found 15 | #include <linux/kvm_host.h> | ^~~~~~~~~~~~~~~~~~ 1 error generated. Error while processing /usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/src/a24e0351858b280a0e17500759ec155b5ad3e184/virt/kvm/irqchip.c.
333c8d5a-94fb-4cdb-b8da-92e2a7a875ac patching-summary 💥 BUG: corrupted list in io_poll_remove_entries 2026/02/10 07:17 2026/02/10 07:25 2026/02/10 07:25 97745f52f5b9361548048f53f0b3b51b9313fedf fork/exec ./syz-agent: no such file or directory
f4eae230-0603-4845-9246-9625f8d60004 patching 💥 BUG: corrupted list in io_poll_remove_entries 2026/02/10 07:16 2026/02/10 07:16 2026/02/10 07:25 97745f52f5b9361548048f53f0b3b51b9313fedf fork/exec ./syz-agent: no such file or directory
Cause bisection: failed (error log, bisect log)
  
▶ ▼ Discussions (5)
Title Replies (including bot) Last reply
Re: media: dvb-core: fix wrong reinitialization of ringbuffer on reopen 1 (1) 2026/02/25 16:03
[PATCH] media: dvb-core: fix wrong reinitialization of ringbuffer on reopen 1 (1) 2026/02/24 18:51
[syzbot] [io-uring?] BUG: corrupted list in io_poll_remove_entries 6 (8) 2026/02/21 13:39
[PATCH] media: dvb-core: protect dvr_buffer reinitialization with lock 1 (1) 2026/02/12 12:31
[PATCH] io_uring: fix list corruption race in io_pollfree_wake() 2 (2) 2026/02/12 12:02
▶ ▼ Similar bugs (6)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Read in io_poll_remove_entries io-uring 19 C done done 751 1069d 1448d 0/29 auto-obsoleted due to no activity on 2023/07/04 23:32
linux-5.15 BUG: corrupted list in io_poll_remove_entries origin:lts-only 8 C error 6 15d 15d 0/3 upstream: reported C repro on 2026/02/22 09:37
linux-6.1 general protection fault in io_poll_remove_entries 11 C done 21 1072d 1091d 3/3 fixed on 2023/05/02 21:55
upstream KASAN: slab-use-after-free Read in io_poll_remove_entries comedi 19 C 12 224d 233d 29/29 fixed on 2025/09/04 16:57
upstream KASAN: slab-use-after-free Read in io_poll_remove_entries (2) io-uring 19 1 102d 101d 0/29 closed as invalid on 2025/12/19 03:22
linux-5.15 KASAN: use-after-free Read in io_poll_remove_entries origin:lts-only 19 C error 5 197d 224d 0/3 auto-obsoleted due to no activity on 2025/12/08 02:55
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2026/02/09 20:18 30m axboe@kernel.dk patch upstream OK log

Sample crash report:
list_del corruption. prev->next should be ffff88807dc6c3f0, but was ffff888146b205c8. (prev=ffff888146b205c8)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:62!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5969 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:__list_del_entry_valid_or_report+0x14a/0x1d0 lib/list_debug.c:62
Code: 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 8d 00 00 00 48 8b 55 00 48 89 e9 48 89 de 48 c7 c7 40 3d fa 8b e8 37 b0 32 fc 90 <0f> 0b 4c 89 e7 e8 3c 24 5d fd 48 89 ea 48 b8 00 00 00 00 00 fc ff
RSP: 0018:ffffc90003bffaa8 EFLAGS: 00010082
RAX: 000000000000006d RBX: ffff88807dc6c3f0 RCX: 0000000000000000
RDX: 000000000000006d RSI: ffffffff81e5d6c9 RDI: fffff5200077ff46
RBP: ffff888146b205c8 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000001 R11: 0000000000000000 R12: ffff88807dc6c2b0
R13: ffff88807dc6c408 R14: ffff88807dc6c3f0 R15: ffff88807dc6c3c8
FS:  0000000000000000(0000) GS:ffff8881245d9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f60e56708c0 CR3: 000000006b065000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:132 [inline]
 __list_del_entry include/linux/list.h:223 [inline]
 list_del_init include/linux/list.h:295 [inline]
 io_poll_remove_waitq io_uring/poll.c:149 [inline]
 io_poll_remove_entry io_uring/poll.c:166 [inline]
 io_poll_remove_entries.part.0+0x156/0x7e0 io_uring/poll.c:197
 io_poll_remove_entries io_uring/poll.c:177 [inline]
 io_poll_task_func+0x39e/0xe30 io_uring/poll.c:343
 io_handle_tw_list+0x194/0x580 io_uring/io_uring.c:1122
 tctx_task_work_run+0x57/0x2b0 io_uring/io_uring.c:1182
 tctx_task_work+0x7a/0xd0 io_uring/io_uring.c:1200
 task_work_run+0x150/0x240 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x829/0x2a30 kernel/exit.c:971
 do_group_exit+0xd5/0x2a0 kernel/exit.c:1112
 __do_sys_exit_group kernel/exit.c:1123 [inline]
 __se_sys_exit_group kernel/exit.c:1121 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1121
 x64_sys_call+0x14fd/0x1510 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f60e579aeb9
Code: Unable to access opcode bytes at 0x7f60e579ae8f.
RSP: 002b:00007ffc2d47ddf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f60e579aeb9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000003 R08: 0000000000000000 R09: 00007f60e59e1280
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f60e59e1280 R14: 0000000000000003 R15: 00007ffc2d47deb0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0x14a/0x1d0 lib/list_debug.c:62
Code: 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 8d 00 00 00 48 8b 55 00 48 89 e9 48 89 de 48 c7 c7 40 3d fa 8b e8 37 b0 32 fc 90 <0f> 0b 4c 89 e7 e8 3c 24 5d fd 48 89 ea 48 b8 00 00 00 00 00 fc ff
RSP: 0018:ffffc90003bffaa8 EFLAGS: 00010082
RAX: 000000000000006d RBX: ffff88807dc6c3f0 RCX: 0000000000000000
RDX: 000000000000006d RSI: ffffffff81e5d6c9 RDI: fffff5200077ff46
RBP: ffff888146b205c8 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000001 R11: 0000000000000000 R12: ffff88807dc6c2b0
R13: ffff88807dc6c408 R14: ffff88807dc6c3f0 R15: ffff88807dc6c3c8
FS:  0000000000000000(0000) GS:ffff8881245d9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f60e56708c0 CR3: 000000006b065000 CR4: 00000000003526f0

Crashes (8):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/02/08 17:56 upstream e7aa57247700 4c131dc4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root BUG: corrupted list in io_poll_remove_entries
2026/02/08 16:52 upstream e7aa57247700 4c131dc4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root BUG: corrupted list in io_poll_remove_entries
2026/02/08 15:10 upstream e7aa57247700 4c131dc4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root BUG: corrupted list in io_poll_remove_entries
2026/02/21 06:30 upstream a95f71ad3e2e 6e7b5511 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce BUG: corrupted list in io_poll_remove_entries
2026/02/08 14:08 upstream e7aa57247700 4c131dc4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root BUG: corrupted list in io_poll_remove_entries
2026/02/08 14:08 upstream e7aa57247700 4c131dc4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root BUG: corrupted list in io_poll_remove_entries
2026/02/08 14:07 upstream e7aa57247700 4c131dc4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root BUG: corrupted list in io_poll_remove_entries
2026/02/11 07:51 linux-next fd9678829d6d 441e25b7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root BUG: corrupted list in io_poll_remove_entries
* Struck through repros no longer work on HEAD.