[GH-ISSUE #1091] s3fs core due to fd_manager_lock #589

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opened 2026-03-04 01:47:00 +03:00 by kerem · 2 comments

kerem commented

2026-03-04 01:47:00 +03:00

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Originally created by @liuyongqing on GitHub (Jul 13, 2019).
Original GitHub issue: https://github.com/s3fs-fuse/s3fs-fuse/issues/1091

Version of s3fs being used (s3fs --version)

s3fs 1.84, master branch source code compile

Version of fuse being used (pkg-config --modversion fuse, rpm -qi fuse, dpkg -s fuse)

fuse 2.9.4

Kernel information (uname -r)

Linux 7e812c9e54b6 4.4.0-130-generic #156-Ubuntu SMP Thu Jun 14 08:53:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

GNU/Linux Distribution, if applicable (cat /etc/os-release)

ubuntu 16.04

Details about issue

the coredump call backtrace is:

the crash was triggered by:

thread A call FdManager::Open and create a FdEntity
thread B call FdManager::Open and get thread A created FdEntity and trying to call ent->Open
thread A call FdManager::Close and deleted the FdEntity
thread B continue ent->Open execute and then crashed due to "double free or corruption (out)"

Originally created by @liuyongqing on GitHub (Jul 13, 2019). Original GitHub issue: https://github.com/s3fs-fuse/s3fs-fuse/issues/1091 #### Version of s3fs being used (s3fs --version) s3fs 1.84, master branch source code compile #### Version of fuse being used (pkg-config --modversion fuse, rpm -qi fuse, dpkg -s fuse) fuse 2.9.4 #### Kernel information (uname -r) Linux 7e812c9e54b6 4.4.0-130-generic #156-Ubuntu SMP Thu Jun 14 08:53:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux #### GNU/Linux Distribution, if applicable (cat /etc/os-release) ubuntu 16.04 ### Details about issue the coredump call backtrace is: ![image](https://user-images.githubusercontent.com/5205797/61167134-52759780-a56c-11e9-9c46-74060f341059.png) the crash was triggered by: 1. thread A call FdManager::Open and create a FdEntity 2. thread B call FdManager::Open and get thread A created FdEntity and trying to call ent->Open 3. thread A call FdManager::Close and deleted the FdEntity 4. thread B continue ent->Open execute and then crashed due to "double free or corruption (out)"

kerem closed this issue

2026-03-04 01:47:01 +03:00

kerem commented

2026-03-04 01:47:02 +03:00

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@liuyongqing commented on GitHub (Jul 13, 2019):

@ggtakec

@liuyongqing commented on GitHub (Jul 13, 2019): @ggtakec

kerem commented

2026-03-04 01:47:02 +03:00

Author

Owner

@ggtakec commented on GitHub (Jul 14, 2019):

@liuyongqing Thank you for the report. Earlier, your PR was merged.
Please let us know if you notice any problems in the future.

@ggtakec commented on GitHub (Jul 14, 2019): @liuyongqing Thank you for the report. Earlier, your PR was merged. Please let us know if you notice any problems in the future.