In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Free local data after use Fixes the following memory leak
in dc_link_construct(): unreferenced object 0xffffa03e81471400 (size 1024):
comm “amd_module_load”, pid 2486, jiffies 4294946026 (age 10.544s) hex dump
(first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
… 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
… backtrace: [<000000000bdf5c4a>]
kmem_cache_alloc_trace+0x30a/0x4a0 [<00000000e7c59f0e>]
link_create+0xce/0xac0 [amdgpu] [<000000002fb6c072>] dc_create+0x370/0x720
[amdgpu] [<000000000094d1f3>] amdgpu_dm_init+0x18e/0x17a0 [amdgpu]
[<00000000bec048fd>] dm_hw_init+0x12/0x20 [amdgpu] [<00000000a2bb7cf6>]
amdgpu_device_init+0x1463/0x1e60 [amdgpu] [<0000000032d3bb13>]
amdgpu_driver_load_kms+0x5b/0x330 [amdgpu] [<00000000a27834f9>]
amdgpu_pci_probe+0x192/0x280 [amdgpu] [<00000000fec7d291>]
local_pci_probe+0x47/0xa0 [<0000000055dbbfa7>] pci_device_probe+0xe3/0x180
[<00000000815da970>] really_probe+0x1c4/0x4e0 [<00000000b4b6974b>]
driver_probe_device+0x62/0x150 [<000000000f9ecc61>]
device_driver_attach+0x58/0x60 [<000000000f65c843>]
__driver_attach+0xd6/0x150 [<000000002f5e3683>] bus_for_each_dev+0x6a/0xc0
[<00000000a1cfc897>] driver_attach+0x1e/0x20
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 23.10 | noarch | linux | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 14.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws | < any | UNKNOWN |
git.kernel.org/linus/616cf23b6cf40ad6f03ffbddfa1b6c4eb68d8ae1 (5.13-rc1)
git.kernel.org/stable/c/296443139f893b554dddd56a99ba8471ab5802d4
git.kernel.org/stable/c/616cf23b6cf40ad6f03ffbddfa1b6c4eb68d8ae1
launchpad.net/bugs/cve/CVE-2021-47042
nvd.nist.gov/vuln/detail/CVE-2021-47042
security-tracker.debian.org/tracker/CVE-2021-47042
www.cve.org/CVERecord?id=CVE-2021-47042