CVE-2022-50394
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2022
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
i2c: ismt: Fix an out-of-bounds bug in ismt_access()
In the Linux kernel, the following vulnerability has been resolved: i2c: ismt: Fix an out-of-bounds bug in ismt_access() When the driver does not check the data from the user, the variable 'data->block[0]' may be very large to cause an out-of-bounds bug. The following log can reveal it: [ 33.995542] i2c i2c-1: ioctl, cmd=0x720, arg=0x7ffcb3dc3a20 [ 33.995978] ismt_smbus 0000:00:05.0: I2C_SMBUS_BLOCK_DATA: WRITE [ 33.996475] ================================================================== [ 33.996995] BUG: KASAN: out-of-bounds in ismt_access.cold+0x374/0x214b [ 33.997473] Read of size 18446744073709551615 at addr ffff88810efcfdb1 by task ismt_poc/485 [ 33.999450] Call Trace: [ 34.001849] memcpy+0x20/0x60 [ 34.002077] ismt_access.cold+0x374/0x214b [ 34.003382] __i2c_smbus_xfer+0x44f/0xfb0 [ 34.004007] i2c_smbus_xfer+0x10a/0x390 [ 34.004291] i2cdev_ioctl_smbus+0x2c8/0x710 [ 34.005196] i2cdev_ioctl+0x5ec/0x74c Fix this bug by checking the size of 'data->block[0]' first.
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) |
|---|---|---|---|---|---|
| 13f35ac14cd0a9a1c4f0034c4c40d0ae98844ce9 | affected | git | 4a7bb1d93addb2f67e36fed00a53cb7f270d7b7a | Unavailable | None listed |
| 13f35ac14cd0a9a1c4f0034c4c40d0ae98844ce9 | affected | git | 03b7ef7a6c5ca1ff553470166b4919db88b810f6 | Unavailable | None listed |
| 13f35ac14cd0a9a1c4f0034c4c40d0ae98844ce9 | affected | git | bfe41d966c860a8ad4c735639d616da270c92735 | Unavailable | None listed |
| 13f35ac14cd0a9a1c4f0034c4c40d0ae98844ce9 | affected | git | cdcbae2c5003747ddfd14e29db9c1d5d7e7c44dd | Unavailable | None listed |
| 13f35ac14cd0a9a1c4f0034c4c40d0ae98844ce9 | affected | git | 9ac541a0898e8ec187a3fa7024b9701cffae6bf2 | Unavailable | None listed |
| 13f35ac14cd0a9a1c4f0034c4c40d0ae98844ce9 | affected | git | 96c12fd0ec74641295e1c3c34dea3dce1b6c3422 | Unavailable | None listed |
| 13f35ac14cd0a9a1c4f0034c4c40d0ae98844ce9 | affected | git | a642469d464b2780a25a49b51ae56623c65eac34 | Unavailable | None listed |
| 13f35ac14cd0a9a1c4f0034c4c40d0ae98844ce9 | affected | git | 233348a04becf133283f0076e20b317302de21d9 | Unavailable | None listed |
| 13f35ac14cd0a9a1c4f0034c4c40d0ae98844ce9 | affected | git | 39244cc754829bf707dccd12e2ce37510f5b1f8d | 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) |
|---|---|---|---|---|---|
| 3.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.9 | Unavailable | None listed |
| 4.9.337 | unaffected | semver | Unavailable | 4.9.* | None listed |
| 4.14.303 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.270 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.229 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.163 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.86 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.0.16 | unaffected | semver | Unavailable | 6.0.* | None listed |
| 6.1.2 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |