CVE - CVE-2021-47353

CVE-ID
CVE-2021-47353	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: udf: Fix NULL pointer dereference in udf_symlink function In function udf_symlink, epos.bh is assigned with the value returned by udf_tgetblk. The function udf_tgetblk is defined in udf/misc.c and returns the value of sb_getblk function that could be NULL. Then, epos.bh is used without any check, causing a possible NULL pointer dereference when sb_getblk fails. This fix adds a check to validate the value of epos.bh.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/21bf1414580c36ffc8d8de043beb3508cf812238 URL:https://git.kernel.org/stable/c/21bf1414580c36ffc8d8de043beb3508cf812238 MISC:https://git.kernel.org/stable/c/2f3d9ddd32a28803baa547e6274983b67d5e287c URL:https://git.kernel.org/stable/c/2f3d9ddd32a28803baa547e6274983b67d5e287c MISC:https://git.kernel.org/stable/c/3638705ecd5ad2785e996f820121c0ad15ce64b5 URL:https://git.kernel.org/stable/c/3638705ecd5ad2785e996f820121c0ad15ce64b5 MISC:https://git.kernel.org/stable/c/371566f63cbd0bb6fbb25b8fe9d5798268d35af9 URL:https://git.kernel.org/stable/c/371566f63cbd0bb6fbb25b8fe9d5798268d35af9 MISC:https://git.kernel.org/stable/c/5150877e4d99f85057a458daac7cd7c01005d5c6 URL:https://git.kernel.org/stable/c/5150877e4d99f85057a458daac7cd7c01005d5c6 MISC:https://git.kernel.org/stable/c/80d505aee6398cf8beb72475c7edcf1733c1c68b URL:https://git.kernel.org/stable/c/80d505aee6398cf8beb72475c7edcf1733c1c68b MISC:https://git.kernel.org/stable/c/aebed6b19e51a34003d998da5ebb1dfdd2cb1d02 URL:https://git.kernel.org/stable/c/aebed6b19e51a34003d998da5ebb1dfdd2cb1d02 MISC:https://git.kernel.org/stable/c/baea588a42d675e35daeaddd10fbc9700550bc4d URL:https://git.kernel.org/stable/c/baea588a42d675e35daeaddd10fbc9700550bc4d MISC:https://git.kernel.org/stable/c/fa236c2b2d4436d9f19ee4e5d5924e90ffd7bb43 URL:https://git.kernel.org/stable/c/fa236c2b2d4436d9f19ee4e5d5924e90ffd7bb43
Assigning CNA
kernel.org
Date Record Created
20240521	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240521)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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