{"id":"CVE-2025-71293","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/ras: Move ras data alloc before bad page check\n\nIn the rare event if eeprom has only invalid address entries,\nallocation is skipped, this causes following NU…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/ras: Move ras data alloc before bad page check\n\nIn the rare event if eeprom has only invalid address entries,\nallocation is skipped, this causes following NU…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-476"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 6.18, < 6.18.16","linux_kernel >= 6.19, < 6.19.6"],"patched":["linux_kernel 6.19.6"],"published":"2026-05-06","updated":"2026-10-14","sourceUpdated":"2026-10-14T13:10:00.187","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-71293","references":[{"url":"https://git.kernel.org/stable/c/0b7f78caeffa51a1afa521c284e863ec3b5a36df","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5c685235b60459381e959109b416a63db4d8dbac","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bd68a1404b6fa2e7e9957b38ba22616faba43e75","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.00126,"epssPercentile":0.0205,"ingestedAt":"2026-10-14T13:30:58.488Z","slug":"CVE-2025-71293","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/ras: Move ras data alloc before bad page check\n\nIn the rare event if eeprom has only invalid address entries,\nallocation is skipped, this causes following NULL pointer issue\n[  547.103445] BUG: kernel NULL pointer dereference, address: 0000000000000010\n[  547.118897] #PF: supervisor read access in kernel mode\n[  547.130292] #PF: error_code(0x0000) - not-present page\n[  547.141689] PGD 124757067 P4D 0\n[  547.148842] Oops: 0000 [#1] PREEMPT SMP NOPTI\n[  547.158504] CPU: 49 PID: 8167 Comm: cat Tainted: G           OE      6.8.0-38-generic #38-Ubuntu\n[  547.177998] Hardware name: Supermicro AS -8126GS-TNMR/H14DSG-OD, BIOS 1.7 09/12/2025\n[  547.195178] RIP: 0010:amdgpu_ras_sysfs_badpages_read+0x2f2/0x5d0 [amdgpu]\n[  547.210375] Code: e8 63 78 82 c0 45 31 d2 45 3b 75 08 48 8b 45 a0 73 44 44 89 f1 48 8b 7d 88 48 89 ca 48 c1 e2 05 48 29 ca 49 8b 4d 00 48 01 d1 <48> 83 79 10 00 74 17 49 63 f2 48 8b 49 08 41 83 c2 01 48 8d 34 76\n[  547.252045] RSP: 0018:ffa0000067287ac0 EFLAGS: 00010246\n[  547.263636] RAX: ff11000167c28130 RBX: ff11000127600000 RCX: 0000000000000000\n[  547.279467] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000125b1c800\n[  547.295298] RBP: ffa0000067287b50 R08: 0000000000000000 R09: 0000000000000000\n[  547.311129] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000\n[  547.326959] R13: ff11000217b1de00 R14: 0000000000000000 R15: 0000000000000092\n[  547.342790] FS:  0000746e59d14740(0000) GS:ff11017dfda80000(0000) knlGS:0000000000000000\n[  547.360744] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  547.373489] CR2: 0000000000000010 CR3: 000000019585e001 CR4: 0000000000f71ef0\n[  547.389321] PKRU: 55555554\n[  547.395316] Call Trace:\n[  547.400737]  <TASK>\n[  547.405386]  ? show_regs+0x6d/0x80\n[  547.412929]  ? __die+0x24/0x80\n[  547.419697]  ? page_fault_oops+0x99/0x1b0\n[  547.428588]  ? do_user_addr_fault+0x2ee/0x6b0\n[  547.438249]  ? exc_page_fault+0x83/0x1b0\n[  547.446949]  ? asm_exc_page_fault+0x27/0x30\n[  547.456225]  ? amdgpu_ras_sysfs_badpages_read+0x2f2/0x5d0 [amdgpu]\n[  547.470040]  ? mas_wr_modify+0xcd/0x140\n[  547.478548]  sysfs_kf_bin_read+0x63/0xb0\n[  547.487248]  kernfs_file_read_iter+0xa1/0x190\n[  547.496909]  kernfs_fop_read_iter+0x25/0x40\n[  547.506182]  vfs_read+0x255/0x390\n\nThis also result in space left assigned to negative values.\nMoving data alloc call before bad page check resolves both the issue.\n\n## Affected\n\n- `linux_kernel >= 6.18, < 6.18.16`\n- `linux_kernel >= 6.19, < 6.19.6`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.19.6`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}