Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 2f3d9ddd32a28803baa547e6274983b67d5e287c; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 371566f63cbd0bb6fbb25b8fe9d5798268d35af9; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before baea588a42d675e35daeaddd10fbc9700550bc4d; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 3638705ecd5ad2785e996f820121c0ad15ce64b5; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 80d505aee6398cf8beb72475c7edcf1733c1c68b; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 21bf1414580c36ffc8d8de043beb3508cf812238; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before aebed6b19e51a34003d998da5ebb1dfdd2cb1d02; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 5150877e4d99f85057a458daac7cd7c01005d5c6; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before fa236c2b2d4436d9f19ee4e5d5924e90ffd7bb43 |
| Linux / Linux | affected 2.6.12; unaffected 0 before 2.6.12; unaffected 4.4.276 through 4.4.*; unaffected 4.9.276 through 4.9.*; unaffected 4.14.240 through 4.14.*; unaffected 4.19.198 through 4.19.*; unaffected 5.4.133 through 5.4.*; unaffected 5.10.51 through 5.10.*; unaffected 5.12.18 through 5.12.*; unaffected 5.13.3 through 5.13.*; unaffected 5.14 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/2f3d9ddd32a28803baa547e6274983b67d5e287c
- https://git.kernel.org/stable/c/371566f63cbd0bb6fbb25b8fe9d5798268d35af9
- https://git.kernel.org/stable/c/baea588a42d675e35daeaddd10fbc9700550bc4d
- https://git.kernel.org/stable/c/3638705ecd5ad2785e996f820121c0ad15ce64b5
- https://git.kernel.org/stable/c/80d505aee6398cf8beb72475c7edcf1733c1c68b
- https://git.kernel.org/stable/c/21bf1414580c36ffc8d8de043beb3508cf812238
- https://git.kernel.org/stable/c/aebed6b19e51a34003d998da5ebb1dfdd2cb1d02
- https://git.kernel.org/stable/c/5150877e4d99f85057a458daac7cd7c01005d5c6
- https://git.kernel.org/stable/c/fa236c2b2d4436d9f19ee4e5d5924e90ffd7bb43
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/2f3d9ddd32a28803baa547e6274983b67d5e287c
- https://git.kernel.org/stable/c/371566f63cbd0bb6fbb25b8fe9d5798268d35af9
- https://git.kernel.org/stable/c/baea588a42d675e35daeaddd10fbc9700550bc4d
- https://git.kernel.org/stable/c/3638705ecd5ad2785e996f820121c0ad15ce64b5
- https://git.kernel.org/stable/c/80d505aee6398cf8beb72475c7edcf1733c1c68b
- https://git.kernel.org/stable/c/21bf1414580c36ffc8d8de043beb3508cf812238
- https://git.kernel.org/stable/c/aebed6b19e51a34003d998da5ebb1dfdd2cb1d02
- https://git.kernel.org/stable/c/5150877e4d99f85057a458daac7cd7c01005d5c6
- https://git.kernel.org/stable/c/fa236c2b2d4436d9f19ee4e5d5924e90ffd7bb43