Vulnerability Details CVE-2026-45972
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix potential UAF and double free in smb2_open_file()
Zero out @err_iov and @err_buftype before retrying SMB2_open() to
prevent an UAF bug if @data != NULL, otherwise a double free.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 38.5%
CVSS Severity
CVSS v3 Score 9.8
References
- https://git.kernel.org/stable/c/4d339b219004869e96c4ce56b8891f83a38da4c0
- https://git.kernel.org/stable/c/639deb962986ef2f5e2a6d5a600c66f922471e81
- https://git.kernel.org/stable/c/7425453ea16dbc3bbb0f6cac4d60b537e5e4d151
- https://git.kernel.org/stable/c/96e53bb3ee2f354cf6b4ab07bcc56e500f8b3f74
- https://git.kernel.org/stable/c/e66dcf7bb9c4df5582c82bc3582725abcbfbea73
- https://git.kernel.org/stable/c/ebbbc4bfad4cb355d17c671223d0814ee3ef4eda
Products affected by CVE-2026-45972
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cpe:2.3:o:linux:linux_kernel:6.1.163
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cpe:2.3:o:linux:linux_kernel:6.1.164
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cpe:2.3:o:linux:linux_kernel:6.12.70
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cpe:2.3:o:linux:linux_kernel:6.12.72
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cpe:2.3:o:linux:linux_kernel:6.12.74
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cpe:2.3:o:linux:linux_kernel:6.18.10
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cpe:2.3:o:linux:linux_kernel:6.18.11
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cpe:2.3:o:linux:linux_kernel:6.18.13
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cpe:2.3:o:linux:linux_kernel:6.19
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cpe:2.3:o:linux:linux_kernel:6.19.1
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cpe:2.3:o:linux:linux_kernel:6.19.3
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cpe:2.3:o:linux:linux_kernel:6.6.124
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cpe:2.3:o:linux:linux_kernel:6.6.125
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cpe:2.3:o:linux:linux_kernel:6.6.127