CVE-2024-49850
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2024
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
bpf: correctly handle malformed BPF_CORE_TYPE_ID_LOCAL relos
In the Linux kernel, the following vulnerability has been resolved: bpf: correctly handle malformed BPF_CORE_TYPE_ID_LOCAL relos In case of malformed relocation record of kind BPF_CORE_TYPE_ID_LOCAL referencing a non-existing BTF type, function bpf_core_calc_relo_insn would cause a null pointer deference. Fix this by adding a proper check upper in call stack, as malformed relocation records could be passed from user space. Simplest reproducer is a program: r0 = 0 exit With a single relocation record: .insn_off = 0, /* patch first instruction */ .type_id = 100500, /* this type id does not exist */ .access_str_off = 6, /* offset of string "0" */ .kind = BPF_CORE_TYPE_ID_LOCAL, See the link for original reproducer or next commit for a test case.
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) |
|---|---|---|---|---|---|
| 74753e1462e77349525daf9eb60ea21ed92d3a97 | affected | git | dc7ce14f00bcd50641f2110b7a32aa6552e0780f | Unavailable | None listed |
| 74753e1462e77349525daf9eb60ea21ed92d3a97 | affected | git | 2288b54b96dcb55bedebcef3572bb8821fc5e708 | Unavailable | None listed |
| 74753e1462e77349525daf9eb60ea21ed92d3a97 | affected | git | 584cd3ff792e1edbea20b2a7df55897159b0be3e | Unavailable | None listed |
| 74753e1462e77349525daf9eb60ea21ed92d3a97 | affected | git | e7e9c5b2dda29067332df2a85b0141a92b41f218 | Unavailable | None listed |
| 74753e1462e77349525daf9eb60ea21ed92d3a97 | affected | git | 3d2786d65aaa954ebd3fcc033ada433e10da21c4 | 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) |
|---|---|---|---|---|---|
| 5.17 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.17 | Unavailable | None listed |
| 6.1.113 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.54 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.10.13 | unaffected | semver | Unavailable | 6.10.* | None listed |
| 6.11.2 | unaffected | semver | Unavailable | 6.11.* | None listed |
| 6.12 | unaffected | original_commit_for_fix | Unavailable | * | None listed |