CVE-2022-50272
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)
media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()
In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer() Wei Chen reports a kernel bug as blew: general protection fault, probably for non-canonical address KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] ... Call Trace: <TASK> __i2c_transfer+0x77e/0x1930 drivers/i2c/i2c-core-base.c:2109 i2c_transfer+0x1d5/0x3d0 drivers/i2c/i2c-core-base.c:2170 i2cdev_ioctl_rdwr+0x393/0x660 drivers/i2c/i2c-dev.c:297 i2cdev_ioctl+0x75d/0x9f0 drivers/i2c/i2c-dev.c:458 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fd834a8bded In az6027_i2c_xfer(), if msg[i].addr is 0x99, a null-ptr-deref will caused when accessing msg[i].buf. For msg[i].len is 0 and msg[i].buf is null. Fix this by checking msg[i].len in az6027_i2c_xfer().
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) |
|---|---|---|---|---|---|
| 76f9a820c8672ada12ffa0903652c9e6f2429462 | affected | git | 2b6a8a1a32746981044e7ab06649c804acb4068a | Unavailable | None listed |
| 76f9a820c8672ada12ffa0903652c9e6f2429462 | affected | git | c712d1ccbfb787620422b437a5b8fac0802547bd | Unavailable | None listed |
| 76f9a820c8672ada12ffa0903652c9e6f2429462 | affected | git | 7abfe467cd685f5da7ecb415441e45e3e4e2baa8 | Unavailable | None listed |
| 76f9a820c8672ada12ffa0903652c9e6f2429462 | affected | git | 8b256d23361c51aa4b7fdb71176c1ca50966fb39 | Unavailable | None listed |
| 76f9a820c8672ada12ffa0903652c9e6f2429462 | affected | git | 559891d430e3f3a178040c4371ed419edbfa7d65 | Unavailable | None listed |
| 76f9a820c8672ada12ffa0903652c9e6f2429462 | affected | git | 210fcf64be4db82c0e190e74b5111e4eef661a7a | Unavailable | None listed |
| 76f9a820c8672ada12ffa0903652c9e6f2429462 | affected | git | 6fbc44731a4665cbe92a5090e9804a388a72214b | Unavailable | None listed |
| 76f9a820c8672ada12ffa0903652c9e6f2429462 | affected | git | 6b60cf73a931af34b7a0a3f467a79d9fe0df2d70 | Unavailable | None listed |
| 76f9a820c8672ada12ffa0903652c9e6f2429462 | affected | git | 0ed554fd769a19ea8464bb83e9ac201002ef74ad | 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) |
|---|---|---|---|---|---|
| 2.6.34 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.34 | 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 |