CVE-2017-18249

The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly have unspecified other impact via concurrent threads.

• CWE-362

• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=30a61ddf8117c26ac5b295e1233eaa9629a94ca3Patch, Third Party Advisory
• http://www.securitytracker.com/id/1041432Third Party Advisory, VDB Entry
• https://github.com/torvalds/linux/commit/30a61ddf8117c26ac5b295e1233eaa9629a94ca3Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2019/03/msg00017.htmlMailing List, Third Party Advisory
• https://usn.ubuntu.com/3932-1/
• https://usn.ubuntu.com/3932-2/
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=30a61ddf8117c26ac5b295e1233eaa9629a94ca3Patch, Third Party Advisory
• http://www.securitytracker.com/id/1041432Third Party Advisory, VDB Entry
• https://github.com/torvalds/linux/commit/30a61ddf8117c26ac5b295e1233eaa9629a94ca3Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2019/03/msg00017.htmlMailing List, Third Party Advisory
• https://usn.ubuntu.com/3932-1/
• https://usn.ubuntu.com/3932-2/

Published

Mar 26, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2017-18243The unpack_parse_unit function in libavcodec/dirac_parser.c …
• CVE-2017-18244The stereo_processing function in libavcodec/aacps.c in Liba…
• CVE-2017-18245The mpc8_probe function in libavformat/mpc8.c in Libav 12.2 …
• CVE-2017-18246The pcm_encode_frame function in libavcodec/pcm.c in Libav 1…
• CVE-2017-18247The av_audio_fifo_size function in libavutil/audio_fifo.c in…
• CVE-2017-18248The add_job function in scheduler/ipp.c in CUPS before 2.2.6…
• CVE-2017-1825Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultI…
• CVE-2017-18250An issue was discovered in ImageMagick 7.0.7. A NULL pointer…
• CVE-2017-18251An issue was discovered in ImageMagick 7.0.7. A memory leak …
• CVE-2017-18252An issue was discovered in ImageMagick 7.0.7. The MogrifyIma…
• CVE-2017-18253An issue was discovered in ImageMagick 7.0.7. A NULL pointer…
• CVE-2017-18254An issue was discovered in ImageMagick 7.0.7. A memory leak …