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【openEuler-1.0-LTS】【Syzkaller】【x86/unwind】WARNING: stack recursion on stack type NUM

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缺陷
创建于  
2022-04-21 11:14

info:
arch=x86_64

WARNING: stack recursion on stack type 4
WARNING: can't dereference registers at 00000000f16b821d for ip swapgs_restore_regs_and_return_to_usermode+0x79/0x87
perf: interrupt took too long (237646 > 234126), lowering kernel.perf_event_max_sample_rate to 1000
perf: interrupt took too long (298340 > 297057), lowering kernel.perf_event_max_sample_rate to 1000

评论 (3)

zouyipeng 创建了任务 3年前

Hi zouyipeng, welcome to the openEuler Community.
I'm the Bot here serving you. You can find the instructions on how to interact with me at Here.
If you have any questions, please contact the SIG: Kernel, and any of the maintainers: @yangyingliang , @pi3orama , @gatieme , @jiaoff , @qiuuuuu , @zhengzengkai , @LiuYongQiang0816 , @xiexiuqi

openeuler-ci-bot 添加了
 
sig/Kernel
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3年前

info:
arch=x86_64

WARNING: stack recursion on stack type 4
WARNING: can't dereference registers at 00000000f16b821d for ip swapgs_restore_regs_and_return_to_usermode+0x79/0x87
perf: interrupt took too long (237646 > 234126), lowering kernel.perf_event_max_sample_rate to 1000
perf: interrupt took too long (298340 > 297057), lowering kernel.perf_event_max_sample_rate to 1000

zouyipeng 修改了描述 3年前
zouyipeng 任务类型任务 修改为缺陷 3年前
zouyipeng 任务状态待办的 修改为修复中 3年前

In swapgs_restore_regs_and_return_to_usermode, after the stack is switched to the trampoline stack, the existing UNWIND_HINT_REGS hint is no longer valid, which can result in the following ORC unwinder warning:
WARNING: can't dereference registers at 000000003aeb0cdd for ip swapgs_restore_regs_and_return_to_usermode+0x93/0xa0

It's Allready Merged On stable-v4.19.y For More Detail Ref:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-4.19.y&id=ac069a960d357a7495fd2a1cde28d9b03250cace

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-4.19.y&id=9fbfc77d0f5e04a7434fa6d32112036e2a41bc6e

zouyipeng 修改了标题 3年前
zouyipeng 任务状态修复中 修改为已完成 3年前
Qiuuuuu 修改了描述 3年前

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