high
7.8
CWE
20
Advisory Published
CVE Published
Updated

CVE-2010-2248: Input Validation

First published: Mon Jun 28 2010(Updated: )

Description of problem: While chasing a bug report involving a OS/2 server, I noticed the server sets pSMBr-&gt;CountHigh to a incorrect value even in case of normal writes. This results in 'nbytes' being computed wrongly and triggers a kernel BUG at mm/filemap.c. void iov_iter_advance(struct iov_iter *i, size_t bytes) { BUG_ON(i-&gt;count &lt; bytes); &lt;--- BUG here Why the server is setting 'CountHigh' is not clear but only does so after writing 64k bytes. Though this looks like the server bug, the client side crash may not be acceptable. The workaround is to mask off high 16 bits if the number of bytes written as returned by the server is greater than the bytes requested by the client. Upstream commit: <a href="http://git.kernel.org/linus/6513a81e9325d712f1bfb9a1d7b750134e49ff18">http://git.kernel.org/linus/6513a81e9325d712f1bfb9a1d7b750134e49ff18</a> (v2.6.34-rc4)

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Linux Linux kernel=2.6.11
Linux Linux kernel=2.6.23.4
Linux Linux kernel=2.6.16.16
Linux Linux kernel=2.6.18.7
Linux Linux kernel=2.6.17.12
Linux Linux kernel=2.6.16.9
Linux Linux kernel=2.6.17.9
Linux Linux kernel=2.6.11.2
Linux Linux kernel=2.6.5
Linux Linux kernel=2.6.15.3
Linux Linux kernel=2.6.11.10
Linux Linux kernel=2.6.1
Linux Linux kernel=2.6.16.6
Linux Linux kernel=2.6.16.8
Linux Linux kernel=2.6.33-rc6
Linux Linux kernel=2.6.22.4
Linux Linux kernel=2.6.14.7
Linux Linux kernel=2.6.13
Linux Linux kernel=2.6.17.2
Linux Linux kernel=2.6.13.3
Linux Linux kernel=2.6.11.8
Linux Linux kernel=2.6.23.7
Linux Linux kernel=2.6.17.8
Linux Linux kernel=2.6.14.4
Linux Linux kernel=2.6.14
Linux Linux kernel=2.6.17.4
Linux Linux kernel=2.6.16.18
Linux Linux kernel=2.6.17.14
Linux Linux kernel=2.6.10
Linux Linux kernel=2.6.14.3
Linux Linux kernel=2.6.34-rc2
Linux Linux kernel=2.6.24-rc3
Linux Linux kernel=2.6.18.3
Linux Linux kernel=2.6.11.6
Linux Linux kernel=2.6.11.11
Linux Linux kernel=2.6.16.13
Linux Linux kernel=2.6.3
Linux Linux kernel=2.6.32
Linux Linux kernel=2.6.16.4
Linux Linux kernel<=2.6.34
Linux Linux kernel=2.6.17.3
Linux Linux kernel=2.6.32.3
Linux Linux kernel=2.6.22
Linux Linux kernel=2.6.4
Linux Linux kernel=2.6.16.15
Linux Linux kernel=2.6.15.6
Linux Linux kernel=2.6.24-rc5
Linux Linux kernel=2.6.34-rc1
Linux Linux kernel=2.6.15.1
Linux Linux kernel=2.6.11.5
Linux Linux kernel=2.6.18.4
Linux Linux kernel=2.6.33-rc1
Linux Linux kernel=2.6.16.1
Linux Linux kernel=2.6.18.1
Linux Linux kernel=2.6.23.1
Linux Linux kernel=2.6.2
Linux Linux kernel=2.6.14.5
Linux Linux kernel=2.6.13.2
Linux Linux kernel=2.6.17.5
Linux Linux kernel=2.6.24-rc4
Linux Linux kernel=2.6.18.5
Linux Linux kernel=2.6.33.2
Linux Linux kernel=2.6.13.5
Linux Linux kernel=2.6.17
Linux Linux kernel=2.6.16.11
Linux Linux kernel=2.6.16.14
Linux Linux kernel=2.6.33-rc2
Linux Linux kernel=2.6.16.25
Linux Linux kernel=2.6.16.21
Linux Linux kernel=2.6.8
Linux Linux kernel=2.6.16.28
Linux Linux kernel=2.6.17.10
Linux Linux kernel=2.6.14.1
Linux Linux kernel=2.6.16.23
Linux Linux kernel=2.6.33.1
Linux Linux kernel=2.6.12.5
Linux Linux kernel=2.6.15.7
Linux Linux kernel=2.6.22.7
Linux Linux kernel=2.6.16.3
Linux Linux kernel=2.6.24-rc1
Linux Linux kernel=2.6.14.6
Linux Linux kernel=2.6.12.1
Linux Linux kernel=2.6.11.9
Linux Linux kernel=2.6.33
Linux Linux kernel=2.6.17.1
Linux Linux kernel=2.6.0
Linux Linux kernel=2.6.13.4
Linux Linux kernel=2.6.23-rc2
Linux Linux kernel=2.6.22.6
Linux Linux kernel=2.6.23.3
Linux Linux kernel=2.6.18.8
Linux Linux kernel=2.6.22.3
Linux Linux kernel=2.6.12.2
Linux Linux kernel=2.6.16.31
Linux Linux kernel=2.6.16.26
Linux Linux kernel=2.6.18.2
Linux Linux kernel=2.6.16.29
Linux Linux kernel=2.6.23-rc1
Linux Linux kernel=2.6.16
Linux Linux kernel=2.6.15.2
Linux Linux kernel=2.6.16.22
Linux Linux kernel=2.6.17.11
Linux Linux kernel=2.6.16.10
Linux Linux kernel=2.6.12.4
Linux Linux kernel=2.6.11.3
Linux Linux kernel=2.6.33-rc3
Linux Linux kernel=2.6.16.24
Linux Linux kernel=2.6.23
Linux Linux kernel=2.6.12.3
Linux Linux kernel=2.6.23.2
Linux Linux kernel=2.6.7
Linux Linux kernel=2.6.32.4
Linux Linux kernel=2.6.16.30
Linux Linux kernel=2.6.15.4
Linux Linux kernel=2.6.24-rc2
Linux Linux kernel=2.6.16.17
Linux Linux kernel=2.6.16.12
Linux Linux kernel=2.6.16.27
Linux Linux kernel=2.6.12.6
Linux Linux kernel=2.6.17.7
Linux Linux kernel=2.6.11.7
Linux Linux kernel=2.6.16.2
Linux Linux kernel=2.6.18.6
Linux Linux kernel=2.6.15
Linux Linux kernel=2.6.33-rc4
Linux Linux kernel=2.6.23.5
Linux Linux kernel=2.6.32.2
Linux Linux kernel=2.6.17.6
Linux Linux kernel=2.6.23.6
Linux Linux kernel=2.6.16.7
Linux Linux kernel=2.6.32.1
Linux Linux kernel=2.6.17.13
Linux Linux kernel=2.6.22.2
Linux Linux kernel=2.6.8.1
Linux Linux kernel=2.6.22.5
Linux Linux kernel=2.6.16.5
Linux Linux kernel=2.6.11.4
Linux Linux kernel=2.6.16.19
Linux Linux kernel=2.6.11.12
Linux Linux kernel=2.6.16.20
Linux Linux kernel=2.6.15.5
Linux Linux kernel=2.6.11.1
Linux Linux kernel=2.6.33-rc5
Linux Linux kernel=2.6.9
Linux Linux kernel=2.6.13.1
Linux Linux kernel=2.6.6
Linux Linux kernel=2.6.12
debian/linux-2.6

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