CVE-2023-54171
- Published: 2025-12-30T13:16:04.940
In the Linux kernel, the following vulnerability has been resolved:
tracing: Fix memory leak of iter->temp when reading trace_pipe
kmemleak reports:
unreferenced object 0xffff88814d14e200 (size 256):
comm “cat”, pid 336, jiffies 4294871818 (age 779.490s)
hex dump (first 32 bytes):
04 00 01 03 00 00 00 00 08 00 00 00 00 00 00 00 …………….
0c d8 c8 9b ff ff ff ff 04 5a ca 9b ff ff ff ff ………Z……
backtrace:
[] __kmalloc+0x4f/0x140
[] trace_find_next_entry+0xbb/0x1d0
[] trace_print_lat_context+0xaf/0x4e0
[] print_trace_line+0x3e0/0x950
[] tracing_read_pipe+0x2d9/0x5a0
[] vfs_read+0x143/0x520
[] ksys_read+0xbd/0x160
[] do_syscall_64+0x3f/0x90
[] entry_SYSCALL_64_after_hwframe+0x6e/0xd8
when reading file ‘trace_pipe’, ‘iter->temp’ is allocated or relocated
in trace_find_next_entry() but not freed before ‘trace_pipe’ is closed.
To fix it, free ‘iter->temp’ in tracing_release_pipe().
Related CVE by CWE
No related CWE found.
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How to fix CVE-2023-54171
Description: In the Linux kernel, the following vulnerability has been resolved: tracing: Fix memory leak of iter->temp when reading trace_pipe kmemleak reports: unreferenced object 0xffff88814d14e200 (size 256): comm “cat”, pid 336, jiffies 4294871818 (age 779.490s) hex dump (first 32 bytes): 04 00 01 03 00 00 00 00 08 00 00 00 00 00 00 00 […]
Exploit Difficulty: HARD
⏱️ Time to exploit: > 4 hours
🛠️ Required skills: Advanced security expertise
💰 Public exploits: Rare or not public
How to Fix:
- Check if you're running the affected product
- Update to the latest patched version
- If patching is not immediately possible: restrict network exposure, apply least-privilege access
- Test the fix in a staging environment first
- Review logs for signs of exploitation
- Monitor for IOCs (Indicators of Compromise)
- Enable automatic security updates
- Set up vulnerability monitoring
- Review and harden security configurations
Exploit Difficulty Assessment
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CVE details first published to NVD database
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Detection Rules & IOCs
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No vendor/product data available.