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CVE-2022-49529— drm/amdgpu/pm: fix the null pointer while the smu is disabled

EPSS 0.06% · P18
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I. Basic Information for CVE-2022-49529

Vulnerability Information
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Vulnerability Title
drm/amdgpu/pm: fix the null pointer while the smu is disabled
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/pm: fix the null pointer while the smu is disabled It needs to check if the pp_funcs is initialized while release the context, otherwise it will trigger null pointer panic while the software smu is not enabled. [ 1109.404555] BUG: kernel NULL pointer dereference, address: 0000000000000078 [ 1109.404609] #PF: supervisor read access in kernel mode [ 1109.404638] #PF: error_code(0x0000) - not-present page [ 1109.404657] PGD 0 P4D 0 [ 1109.404672] Oops: 0000 [#1] PREEMPT SMP NOPTI [ 1109.404701] CPU: 7 PID: 9150 Comm: amdgpu_test Tainted: G OEL 5.16.0-custom #1 [ 1109.404732] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 1109.404765] RIP: 0010:amdgpu_dpm_force_performance_level+0x1d/0x170 [amdgpu] [ 1109.405109] Code: 5d c3 44 8b a3 f0 80 00 00 eb e5 66 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 08 4c 8b b7 f0 7d 00 00 <49> 83 7e 78 00 0f 84 f2 00 00 00 80 bf 87 80 00 00 00 48 89 fb 0f [ 1109.405176] RSP: 0018:ffffaf3083ad7c20 EFLAGS: 00010282 [ 1109.405203] RAX: 0000000000000000 RBX: ffff9796b1c14600 RCX: 0000000002862007 [ 1109.405229] RDX: ffff97968591c8c0 RSI: 0000000000000001 RDI: ffff9796a3700000 [ 1109.405260] RBP: ffffaf3083ad7c50 R08: ffffffff9897de00 R09: ffff979688d9db60 [ 1109.405286] R10: 0000000000000000 R11: ffff979688d9db90 R12: 0000000000000001 [ 1109.405316] R13: ffff9796a3700000 R14: 0000000000000000 R15: ffff9796a3708fc0 [ 1109.405345] FS: 00007ff055cff180(0000) GS:ffff9796bfdc0000(0000) knlGS:0000000000000000 [ 1109.405378] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1109.405400] CR2: 0000000000000078 CR3: 000000000a394000 CR4: 00000000000506e0 [ 1109.405434] Call Trace: [ 1109.405445] <TASK> [ 1109.405456] ? delete_object_full+0x1d/0x20 [ 1109.405480] amdgpu_ctx_set_stable_pstate+0x7c/0xa0 [amdgpu] [ 1109.405698] amdgpu_ctx_fini.part.0+0xcb/0x100 [amdgpu] [ 1109.405911] amdgpu_ctx_do_release+0x71/0x80 [amdgpu] [ 1109.406121] amdgpu_ctx_ioctl+0x52d/0x550 [amdgpu] [ 1109.406327] ? _raw_spin_unlock+0x1a/0x30 [ 1109.406354] ? drm_gem_handle_delete+0x81/0xb0 [drm] [ 1109.406400] ? amdgpu_ctx_get_entity+0x2c0/0x2c0 [amdgpu] [ 1109.406609] drm_ioctl_kernel+0xb6/0x140 [drm]
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在smu禁用时未检查pp_funcs是否初始化，可能导致空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 79c65f3fcbb1288b84473d45e6d001820a971d54 ~ 49ec3441aa5e5940f3e82dd2f0205b9c856e399d -
LinuxLinux 5.18 -

II. Public POCs for CVE-2022-49529

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III. Intelligence Information for CVE-2022-49529

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Same Patch Batch · Linux · 2025-02-26 · 706 CVEs total

CVE-2022-49496media: mediatek: vcodec: prevent kernel crash when rmmod mtk-vcodec-dec.ko
CVE-2022-49487mtd: rawnand: intel: fix possible null-ptr-deref in ebu_nand_probe()
CVE-2022-49486ASoC: fsl: Fix refcount leak in imx_sgtl5000_probe
CVE-2022-49488drm/msm/mdp5: Return error code in mdp5_mixer_release when deadlock is detected
CVE-2022-49489drm/msm/disp/dpu1: set vbif hw config to NULL to avoid use after memory free during pm run
CVE-2022-49490drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected
CVE-2022-49491drm/rockchip: vop: fix possible null-ptr-deref in vop_bind()
CVE-2022-49492nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags
CVE-2022-49493ASoC: rt5645: Fix errorenous cleanup order
CVE-2022-49494mtd: rawnand: cadence: fix possible null-ptr-deref in cadence_nand_dt_probe()
CVE-2022-49495drm/msm/hdmi: check return value after calling platform_get_resource_byname()
CVE-2022-49497net: remove two BUG() from skb_checksum_help()
CVE-2022-49503ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix
CVE-2022-49508HID: elan: Fix potential double free in elan_input_configured
CVE-2022-49506drm/mediatek: Add vblank register/unregister callback functions
CVE-2022-49504scsi: lpfc: Inhibit aborts if external loopback plug is inserted
CVE-2022-49505NFC: NULL out the dev->rfkill to prevent UAF
CVE-2022-49502media: rga: fix possible memory leak in rga_probe
CVE-2022-49499drm/msm: Fix null pointer dereferences without iommu
CVE-2022-49498ALSA: pcm: Check for null pointer of pointer substream before dereferencing it

Showing top 20 of 706 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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