CVE-2021-47353
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
udf: Fix NULL pointer dereference in udf_symlink function
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 2f3d9ddd32a28803baa547e6274983b67d5e287c | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 371566f63cbd0bb6fbb25b8fe9d5798268d35af9 | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | baea588a42d675e35daeaddd10fbc9700550bc4d | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 3638705ecd5ad2785e996f820121c0ad15ce64b5 | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 80d505aee6398cf8beb72475c7edcf1733c1c68b | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 21bf1414580c36ffc8d8de043beb3508cf812238 | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | aebed6b19e51a34003d998da5ebb1dfdd2cb1d02 | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | 5150877e4d99f85057a458daac7cd7c01005d5c6 | Unavailable | None listed |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | affected | git | fa236c2b2d4436d9f19ee4e5d5924e90ffd7bb43 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.12 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.12 | Unavailable | None listed |
| 4.4.276 | unaffected | semver | Unavailable | 4.4.* | None listed |
| 4.9.276 | unaffected | semver | Unavailable | 4.9.* | None listed |
| 4.14.240 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.198 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.133 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.51 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.12.18 | unaffected | semver | Unavailable | 5.12.* | None listed |
| 5.13.3 | unaffected | semver | Unavailable | 5.13.* | None listed |
| 5.14 | unaffected | original_commit_for_fix | Unavailable | * | None listed |