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CVE-2024-50177— drm/amd/display: fix a UBSAN warning in DML2.1

EPSS 0.02% · P4
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I. Basic Information for CVE-2024-50177

Vulnerability Information
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Vulnerability Title
drm/amd/display: fix a UBSAN warning in DML2.1
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix a UBSAN warning in DML2.1 When programming phantom pipe, since cursor_width is explicity set to 0, this causes calculation logic to trigger overflow for an unsigned int triggering the kernel's UBSAN check as below: [ 40.962845] UBSAN: shift-out-of-bounds in /tmp/amd.EfpumTkO/amd/amdgpu/../display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4_calcs.c:3312:34 [ 40.962849] shift exponent 4294967170 is too large for 32-bit type 'unsigned int' [ 40.962852] CPU: 1 PID: 1670 Comm: gnome-shell Tainted: G W OE 6.5.0-41-generic #41~22.04.2-Ubuntu [ 40.962854] Hardware name: Gigabyte Technology Co., Ltd. X670E AORUS PRO X/X670E AORUS PRO X, BIOS F21 01/10/2024 [ 40.962856] Call Trace: [ 40.962857] <TASK> [ 40.962860] dump_stack_lvl+0x48/0x70 [ 40.962870] dump_stack+0x10/0x20 [ 40.962872] __ubsan_handle_shift_out_of_bounds+0x1ac/0x360 [ 40.962878] calculate_cursor_req_attributes.cold+0x1b/0x28 [amdgpu] [ 40.963099] dml_core_mode_support+0x6b91/0x16bc0 [amdgpu] [ 40.963327] ? srso_alias_return_thunk+0x5/0x7f [ 40.963331] ? CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport+0x18b8/0x2790 [amdgpu] [ 40.963534] ? srso_alias_return_thunk+0x5/0x7f [ 40.963536] ? dml_core_mode_support+0xb3db/0x16bc0 [amdgpu] [ 40.963730] dml2_core_calcs_mode_support_ex+0x2c/0x90 [amdgpu] [ 40.963906] ? srso_alias_return_thunk+0x5/0x7f [ 40.963909] ? dml2_core_calcs_mode_support_ex+0x2c/0x90 [amdgpu] [ 40.964078] core_dcn4_mode_support+0x72/0xbf0 [amdgpu] [ 40.964247] dml2_top_optimization_perform_optimization_phase+0x1d3/0x2a0 [amdgpu] [ 40.964420] dml2_build_mode_programming+0x23d/0x750 [amdgpu] [ 40.964587] dml21_validate+0x274/0x770 [amdgpu] [ 40.964761] ? srso_alias_return_thunk+0x5/0x7f [ 40.964763] ? resource_append_dpp_pipes_for_plane_composition+0x27c/0x3b0 [amdgpu] [ 40.964942] dml2_validate+0x504/0x750 [amdgpu] [ 40.965117] ? dml21_copy+0x95/0xb0 [amdgpu] [ 40.965291] ? srso_alias_return_thunk+0x5/0x7f [ 40.965295] dcn401_validate_bandwidth+0x4e/0x70 [amdgpu] [ 40.965491] update_planes_and_stream_state+0x38d/0x5c0 [amdgpu] [ 40.965672] update_planes_and_stream_v3+0x52/0x1e0 [amdgpu] [ 40.965845] ? srso_alias_return_thunk+0x5/0x7f [ 40.965849] dc_update_planes_and_stream+0x71/0xb0 [amdgpu] Fix this by adding a guard for checking cursor width before triggering the size calculation.
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UBSAN警告触发时存在整数溢出问题。
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 70839da6360500a82e4d5f78499284474cbed7c1 ~ 27bc3da5eae57e3af8f5648b4498ffde48781434 -
LinuxLinux 6.11 -

II. Public POCs for CVE-2024-50177

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III. Intelligence Information for CVE-2024-50177

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Same Patch Batch · Linux · 2024-11-08 · 38 CVEs total

CVE-2024-50203bpf, arm64: Fix address emission with tag-based KASAN enabled
CVE-2024-50194arm64: probes: Fix uprobes for big-endian kernels
CVE-2024-50195posix-clock: Fix missing timespec64 check in pc_clock_settime()
CVE-2024-50196pinctrl: ocelot: fix system hang on level based interrupts
CVE-2024-50197pinctrl: intel: platform: fix error path in device_for_each_child_node()
CVE-2024-50198iio: light: veml6030: fix IIO device retrieval from embedded device
CVE-2024-50199mm/swapfile: skip HugeTLB pages for unuse_vma
CVE-2024-50200maple_tree: correct tree corruption on spanning store
CVE-2024-50201drm/radeon: Fix encoder->possible_clones
CVE-2024-50202nilfs2: propagate directory read errors from nilfs_find_entry()
CVE-2024-50193x86/entry_32: Clear CPU buffers after register restore in NMI return
CVE-2024-50204fs: don't try and remove empty rbtree node
CVE-2024-50205ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size()
CVE-2024-50206net: ethernet: mtk_eth_soc: fix memory corruption during fq dma init
CVE-2024-50207ring-buffer: Fix reader locking when changing the sub buffer order
CVE-2024-50209RDMA/bnxt_re: Add a check for memory allocation
CVE-2024-50208RDMA/bnxt_re: Fix a bug while setting up Level-2 PBL pages
CVE-2024-50210posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime()
CVE-2024-50211udf: refactor inode_bmap() to handle error
CVE-2024-50184virtio_pmem: Check device status before requesting flush

Showing top 20 of 38 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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