CVE-2024-49887

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Source
https://cve.org/CVERecord?id=CVE-2024-49887
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-49887.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-49887
Downstream
Related
Published
2024-10-21T18:01:23.561Z
Modified
2026-03-20T12:38:09.866719Z
Summary
f2fs: fix to don't panic system for no free segment fault injection
Details

In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix to don't panic system for no free segment fault injection

f2fs: fix to don't panic system for no free segment fault injection

syzbot reports a f2fs bug as below:

F2FS-fs (loop0): inject no free segment in getnewsegment of __allocatenewsegment+0x1ce/0x940 fs/f2fs/segment.c:3167 F2FS-fs (loop0): Stopped filesystem due to reason: 7 ------------[ cut here ]------------ kernel BUG at fs/f2fs/segment.c:2748! CPU: 0 UID: 0 PID: 5109 Comm: syz-executor304 Not tainted 6.11.0-rc6-syzkaller-00363-g89f5e14d05b4 #0 RIP: 0010:get_newsegment fs/f2fs/segment.c:2748 [inline] RIP: 0010:newcurseg+0x1f61/0x1f70 fs/f2fs/segment.c:2836 Call Trace: __allocatenewsegment+0x1ce/0x940 fs/f2fs/segment.c:3167 f2fs_allocatenewsection fs/f2fs/segment.c:3181 [inline] f2fsallocatepinningsection+0xfa/0x4e0 fs/f2fs/segment.c:3195 f2fsexpandinodedata+0x5d6/0xbb0 fs/f2fs/file.c:1799 f2fsfallocate+0x448/0x960 fs/f2fs/file.c:1903 vfsfallocate+0x553/0x6c0 fs/open.c:334 dovfsioctl+0x2592/0x2e50 fs/ioctl.c:886 __dosysioctl fs/ioctl.c:905 [inline] _sesysioctl+0x81/0x170 fs/ioctl.c:893 dosyscallx64 arch/x86/entry/common.c:52 [inline] dosyscall64+0xf3/0x230 arch/x86/entry/common.c:83 entrySYSCALL64afterhwframe+0x77/0x7f RIP: 0010:getnewsegment fs/f2fs/segment.c:2748 [inline] RIP: 0010:newcurseg+0x1f61/0x1f70 fs/f2fs/segment.c:2836

The root cause is when we inject no free segment fault into f2fs, we should not panic system, fix it.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49887.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
8b10d3653735e117bc1954ade80d75ad7b46b801
Fixed
9f6e7a0512a57387d36f5e9e9635d6668cac13dd
Fixed
645ec43760e86d3079fee2e8b51fde7060a540d0
Fixed
65a6ce4726c27b45600303f06496fef46d00b57f

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-49887.json"