CVE-2023-53474
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
x86/MCE/AMD: Use an u64 for bank_map
In the Linux kernel, the following vulnerability has been resolved: x86/MCE/AMD: Use an u64 for bank_map Thee maximum number of MCA banks is 64 (MAX_NR_BANKS), see a0bc32b3cacf ("x86/mce: Increase maximum number of banks to 64"). However, the bank_map which contains a bitfield of which banks to initialize is of type unsigned int and that overflows when those bit numbers are >= 32, leading to UBSAN complaining correctly: UBSAN: shift-out-of-bounds in arch/x86/kernel/cpu/mce/amd.c:1365:38 shift exponent 32 is too large for 32-bit type 'int' Change the bank_map to a u64 and use the proper BIT_ULL() macro when modifying bits in there. [ bp: Rewrite commit message. ]
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) |
|---|---|---|---|---|---|
| a0bc32b3cacf194dc479b342f006203fd1e1941a | affected | git | a9b9ea0e63a0ec5e97bf1219ab6dcbd55e362f83 | Unavailable | None listed |
| a0bc32b3cacf194dc479b342f006203fd1e1941a | affected | git | 11c58a0c1937c157dbdf82d5ab634d68c99f3098 | Unavailable | None listed |
| a0bc32b3cacf194dc479b342f006203fd1e1941a | affected | git | ba8ffb1251eb629c2ec35220e3896cf4f7b888a7 | Unavailable | None listed |
| a0bc32b3cacf194dc479b342f006203fd1e1941a | affected | git | 9669fa17287c3af2bbd4868d4c8fdd9e57f8332e | Unavailable | None listed |
| a0bc32b3cacf194dc479b342f006203fd1e1941a | affected | git | 67bb7521b6420d81dab7538c0686f18f7d6d09f4 | Unavailable | None listed |
| a0bc32b3cacf194dc479b342f006203fd1e1941a | affected | git | 4c1cdec319b9aadb65737c3eb1f5cb74bd6aa156 | 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) |
|---|---|---|---|---|---|
| 5.10 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.10 | Unavailable | None listed |
| 5.10.180 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.111 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.28 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.2.15 | unaffected | semver | Unavailable | 6.2.* | None listed |
| 6.3.2 | unaffected | semver | Unavailable | 6.3.* | None listed |
| 6.4 | unaffected | original_commit_for_fix | Unavailable | * | None listed |