CVE-2022-50556
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)
drm: Fix potential null-ptr-deref due to drmm_mode_config_init()
In the Linux kernel, the following vulnerability has been resolved: drm: Fix potential null-ptr-deref due to drmm_mode_config_init() drmm_mode_config_init() will call drm_mode_create_standard_properties() and won't check the ret value. When drm_mode_create_standard_properties() failed due to alloc, property will be a NULL pointer and may causes the null-ptr-deref. Fix the null-ptr-deref by adding the ret value check. Found null-ptr-deref while testing insert module bochs: general protection fault, probably for non-canonical address 0xdffffc000000000c: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067] CPU: 3 PID: 249 Comm: modprobe Not tainted 6.1.0-rc1+ #364 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.15.0-0-g2dd4b9b3f840-prebuilt.qemu.org 04/01/2014 RIP: 0010:drm_object_attach_property+0x73/0x3c0 [drm] Call Trace: <TASK> __drm_connector_init+0xb6c/0x1100 [drm] bochs_pci_probe.cold.11+0x4cb/0x7fe [bochs] pci_device_probe+0x17d/0x340 really_probe+0x1db/0x5d0 __driver_probe_device+0x1e7/0x250 driver_probe_device+0x4a/0x120 __driver_attach+0xcd/0x2c0 bus_for_each_dev+0x11a/0x1b0 bus_add_driver+0x3d7/0x500 driver_register+0x18e/0x320 do_one_initcall+0xc4/0x3e0 do_init_module+0x1b4/0x630 load_module+0x5dca/0x7230 __do_sys_finit_module+0x100/0x170 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff65af9f839
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) |
|---|---|---|---|---|---|
| 6b4959f43a04e12d39c5700607727f2cbcfeac31 | affected | git | 5ae70041a6d7de62a0cdb2bbcfe0c9cf753035d0 | Unavailable | None listed |
| 6b4959f43a04e12d39c5700607727f2cbcfeac31 | affected | git | d06e827a65a6bcd2e329045d891d0739cec1cf4a | Unavailable | None listed |
| 6b4959f43a04e12d39c5700607727f2cbcfeac31 | affected | git | b14147464251f66e38fa39f0aae9780466db8610 | Unavailable | None listed |
| 6b4959f43a04e12d39c5700607727f2cbcfeac31 | affected | git | 961620ad67611a7320a49f4b6f3c5e2906833a03 | Unavailable | None listed |
| 6b4959f43a04e12d39c5700607727f2cbcfeac31 | affected | git | 834c23e4f798dcdc8af251b3c428ceef94741991 | 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) |
|---|---|---|---|---|---|
| 4.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.0 | Unavailable | None listed |
| 5.10.173 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.99 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.16 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.2.3 | unaffected | semver | Unavailable | 6.2.* | None listed |
| 6.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |