{"id":"CVE-2023-53703","state":"PUBLISHED","title":"HID: amd_sfh: Fix for shift-out-of-bounds","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: amd_sfh: Fix for shift-out-of-bounds\n\nShift operation of 'exp' and 'shift' variables exceeds the maximum number\nof shift values in the u32 range leading to UBSAN shift-out-of-bounds.\n\n...\n[    6.120512] UBSAN: shift-out-of-bounds in drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_desc.c:149:50\n[    6.120598] shift exponent 104 is too large for 64-bit type 'long unsigned int'\n[    6.120659] CPU: 4 PID: 96 Comm: kworker/4:1 Not tainted 6.4.0amd_1-next-20230519-dirty #10\n[    6.120665] Hardware name: AMD Birman-PHX/Birman-PHX, BIOS SFH_with_HPD_SEN.FD 04/05/2023\n[    6.120667] Workqueue: events amd_sfh_work_buffer [amd_sfh]\n[    6.120687] Call Trace:\n[    6.120690]  <TASK>\n[    6.120694]  dump_stack_lvl+0x48/0x70\n[    6.120704]  dump_stack+0x10/0x20\n[    6.120707]  ubsan_epilogue+0x9/0x40\n[    6.120716]  __ubsan_handle_shift_out_of_bounds+0x10f/0x170\n[    6.120720]  ? psi_group_change+0x25f/0x4b0\n[    6.120729]  float_to_int.cold+0x18/0xba [amd_sfh]\n[    6.120739]  get_input_rep+0x57/0x340 [amd_sfh]\n[    6.120748]  ? __schedule+0xba7/0x1b60\n[    6.120756]  ? __pfx_get_input_rep+0x10/0x10 [amd_sfh]\n[    6.120764]  amd_sfh_work_buffer+0x91/0x180 [amd_sfh]\n[    6.120772]  process_one_work+0x229/0x430\n[    6.120780]  worker_thread+0x4a/0x3c0\n[    6.120784]  ? __pfx_worker_thread+0x10/0x10\n[    6.120788]  kthread+0xf7/0x130\n[    6.120792]  ? __pfx_kthread+0x10/0x10\n[    6.120795]  ret_from_fork+0x29/0x50\n[    6.120804]  </TASK>\n...\n\nFix this by adding the condition to validate shift ranges.","publishedAt":"2025-10-22T13:23:41.450Z","updatedAt":"2026-05-11T19:50:13.248Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"93ce5e0231d79189be4d9e5f9295807b18941419","status":"affected","lessThan":"5a45ed1ae34bb0e68944471f4bafb68e0a572791","versionType":"git"},{"version":"93ce5e0231d79189be4d9e5f9295807b18941419","status":"affected","lessThan":"1e50bc2c177d4b2953d77037ac46ea0702d6aa1f","versionType":"git"},{"version":"93ce5e0231d79189be4d9e5f9295807b18941419","status":"affected","lessThan":"87854366176403438d01f368b09de3ec2234e0f5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_desc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"6.1.40","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.4.5","status":"unaffected","lessThanOrEqual":"6.4.*","versionType":"semver"},{"version":"6.5","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_desc.c"]}],"references":["https://git.kernel.org/stable/c/5a45ed1ae34bb0e68944471f4bafb68e0a572791","https://git.kernel.org/stable/c/1e50bc2c177d4b2953d77037ac46ea0702d6aa1f","https://git.kernel.org/stable/c/87854366176403438d01f368b09de3ec2234e0f5"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53703.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53703","state":"PUBLISHED","datePublished":"2025-10-22T13:23:41.450Z","dateUpdated":"2026-05-11T19:50:13.248Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-10-22T13:21:37.345Z"},"containers":{"cna":{"title":"HID: amd_sfh: Fix for shift-out-of-bounds","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: amd_sfh: Fix for shift-out-of-bounds\n\nShift operation of 'exp' and 'shift' variables exceeds the maximum number\nof shift values in the u32 range leading to UBSAN shift-out-of-bounds.\n\n...\n[    6.120512] UBSAN: shift-out-of-bounds in drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_desc.c:149:50\n[    6.120598] shift exponent 104 is too large for 64-bit type 'long unsigned int'\n[    6.120659] CPU: 4 PID: 96 Comm: kworker/4:1 Not tainted 6.4.0amd_1-next-20230519-dirty #10\n[    6.120665] Hardware name: AMD Birman-PHX/Birman-PHX, BIOS SFH_with_HPD_SEN.FD 04/05/2023\n[    6.120667] Workqueue: events amd_sfh_work_buffer [amd_sfh]\n[    6.120687] Call Trace:\n[    6.120690]  <TASK>\n[    6.120694]  dump_stack_lvl+0x48/0x70\n[    6.120704]  dump_stack+0x10/0x20\n[    6.120707]  ubsan_epilogue+0x9/0x40\n[    6.120716]  __ubsan_handle_shift_out_of_bounds+0x10f/0x170\n[    6.120720]  ? psi_group_change+0x25f/0x4b0\n[    6.120729]  float_to_int.cold+0x18/0xba [amd_sfh]\n[    6.120739]  get_input_rep+0x57/0x340 [amd_sfh]\n[    6.120748]  ? __schedule+0xba7/0x1b60\n[    6.120756]  ? __pfx_get_input_rep+0x10/0x10 [amd_sfh]\n[    6.120764]  amd_sfh_work_buffer+0x91/0x180 [amd_sfh]\n[    6.120772]  process_one_work+0x229/0x430\n[    6.120780]  worker_thread+0x4a/0x3c0\n[    6.120784]  ? __pfx_worker_thread+0x10/0x10\n[    6.120788]  kthread+0xf7/0x130\n[    6.120792]  ? __pfx_kthread+0x10/0x10\n[    6.120795]  ret_from_fork+0x29/0x50\n[    6.120804]  </TASK>\n...\n\nFix this by adding the condition to validate shift ranges."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"93ce5e0231d79189be4d9e5f9295807b18941419","status":"affected","lessThan":"5a45ed1ae34bb0e68944471f4bafb68e0a572791","versionType":"git"},{"version":"93ce5e0231d79189be4d9e5f9295807b18941419","status":"affected","lessThan":"1e50bc2c177d4b2953d77037ac46ea0702d6aa1f","versionType":"git"},{"version":"93ce5e0231d79189be4d9e5f9295807b18941419","status":"affected","lessThan":"87854366176403438d01f368b09de3ec2234e0f5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_desc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"6.1.40","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.4.5","status":"unaffected","lessThanOrEqual":"6.4.*","versionType":"semver"},{"version":"6.5","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_desc.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/5a45ed1ae34bb0e68944471f4bafb68e0a572791"},{"url":"https://git.kernel.org/stable/c/1e50bc2c177d4b2953d77037ac46ea0702d6aa1f"},{"url":"https://git.kernel.org/stable/c/87854366176403438d01f368b09de3ec2234e0f5"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:50:13.248Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.1.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.4.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.5"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}