In the Linux kernel, the following vulnerability has been resolved:
drm/i915/gem: Really move i915_gem_context.link under ref protection
i915_perf assumes that it can use the i915_gem_context reference to protect its i915->gem.contexts.list iteration. However, this requires that we do not remove the context from the list until after we drop the final reference and release the struct. If, as currently, we remove the context from the list during context_close(), the link.next pointer may be poisoned while we are holding the context reference and cause a GPF:
[ 4070.573157] i915 0000:00:02.0: [drm:i915_perf_open_ioctl [i915]] filtering on ctx_id=0x1fffff ctx_id_mask=0x1fffff [ 4070.574881] general protection fault, probably for non-canonical address 0xdead000000000100: 0000 [#1] PREEMPT SMP [ 4070.574897] CPU: 1 PID: 284392 Comm: amd_performance Tainted: G E 5.17.9 #180 [ 4070.574903] Hardware name: Intel Corporation NUC7i5BNK/NUC7i5BNB, BIOS BNKBL357.86A.0052.2017.0918.1346 09/18/2017 [ 4070.574907] RIP: 0010:oa_configure_all_contexts.isra.0+0x222/0x350 [i915] [ 4070.574982] Code: 08 e8 32 6e 10 e1 4d 8b 6d 50 b8 ff ff ff ff 49 83 ed 50 f0 41 0f c1 04 24 83 f8 01 0f 84 e3 00 00 00 85 c0 0f 8e fa 00 00 00 <49> 8b 45 50 48 8d 70 b0 49 8d 45 50 48 39 44 24 10 0f 85 34 fe ff [ 4070.574990] RSP: 0018:ffffc90002077b78 EFLAGS: 00010202 [ 4070.574995] RAX: 0000000000000002 RBX: 0000000000000002 RCX: 0000000000000000 [ 4070.575000] RDX: 0000000000000001 RSI: ffffc90002077b20 RDI: ffff88810ddc7c68 [ 4070.575004] RBP: 0000000000000001 R08: ffff888103242648 R09: fffffffffffffffc [ 4070.575008] R10: ffffffff82c50bc0 R11: 0000000000025c80 R12: ffff888101bf1860 [ 4070.575012] R13: dead0000000000b0 R14: ffffc90002077c04 R15: ffff88810be5cabc [ 4070.575016] FS: 00007f1ed50c0780(0000) GS:ffff88885ec80000(0000) knlGS:0000000000000000 [ 4070.575021] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4070.575025] CR2: 00007f1ed5590280 CR3: 000000010ef6f005 CR4: 00000000003706e0 [ 4070.575029] Call Trace: [ 4070.575033] <TASK> [ 4070.575037] lrc_configure_all_contexts+0x13e/0x150 [i915] [ 4070.575103] gen8_enable_metric_set+0x4d/0x90 [i915] [ 4070.575164] i915_perf_open_ioctl+0xbc0/0x1500 [i915] [ 4070.575224] ? asm_common_interrupt+0x1e/0x40 [ 4070.575232] ? i915_oa_init_reg_state+0x110/0x110 [i915] [ 4070.575290] drm_ioctl_kernel+0x85/0x110 [ 4070.575296] ? update_load_avg+0x5f/0x5e0 [ 4070.575302] drm_ioctl+0x1d3/0x370 [ 4070.575307] ? i915_oa_init_reg_state+0x110/0x110 [i915] [ 4070.575382] ? gen8_gt_irq_handler+0x46/0x130 [i915] [ 4070.575445] __x64_sys_ioctl+0x3c4/0x8d0 [ 4070.575451] ? __do_softirq+0xaa/0x1d2 [ 4070.575456] do_syscall_64+0x35/0x80 [ 4070.575461] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 4070.575467] RIP: 0033:0x7f1ed5c10397 [ 4070.575471] Code: 3c 1c e8 1c ff ff ff 85 c0 79 87 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a9 da 0d 00 f7 d8 64 89 01 48 [ 4070.575478] RSP: 002b:00007ffd65c8d7a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 4070.575484] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f1ed5c10397 [ 4070.575488] RDX: 00007ffd65c8d7c0 RSI: 0000000040106476 RDI: 0000000000000006 [ 4070.575492] RBP: 00005620972f9c60 R08: 000000000000000a R09: 0000000000000005 [ 4070.575496] R10: 000000000000000d R11: 0000000000000246 R12: 000000000000000a [ 4070.575500] R13: 000000000000000d R14: 0000000000000000 R15: 00007ffd65c8d7c0 [ 4070.575505] </TASK> [ 4070.575507] Modules linked in: nls_ascii(E) nls_cp437(E) vfat(E) fat(E) i915(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) crct10dif_pclmul(E) crc32_pclmul(E) crc32c_intel(E) aesni_intel(E) crypto_simd(E) intel_gtt(E) cryptd(E) ttm(E) rapl(E) intel_cstate(E) drm_kms_helper(E) cfbfillrect(E) syscopyarea(E) cfbimgblt(E) intel_uncore(E) sysfillrect(E) mei_me(E) sysimgblt(E) i2c_i801(E) fb_sys_fops(E) mei(E) intel_pch_thermal(E) i2c_smbus ---truncated---
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade bpftool-debuginfoUpgrade bpftoolUpgrade kernel-livepatch-5.15.73-48.135Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-toolsUpgrade python-perfUpgrade perfUpgrade perf-debuginfoUpgrade kernel-headersUpgrade kernel-tools-debuginfoUpgrade kernelUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-develUpgrade python-perf-debuginfoUpgrade kernel-debuginfo | Jun 11, 2024 | Apr 28, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Apr 28, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Apr 28, 2024 |
| Suse | — | Upgrade kernel-azure-vdsoUpgrade kernel-64kb-develUpgrade kernel-rt-livepatch-develUpgrade dtb-rockchipUpgrade reiserfs-kmp-azureUpgrade gfs2-kmp-rtUpgrade kernel-obs-qaUpgrade dtb-mediatekUpgrade ocfs2-kmp-rtUpgrade reiserfs-kmp-rtUpgrade kernel-default-base-rebuildUpgrade kselftests-kmp-defaultUpgrade kernel-default-extraUpgrade kernel-kvmsmallUpgrade kernel-debugUpgrade kernel-azure-livepatch-develUpgrade kernel-rt_debugUpgrade dtb-apmUpgrade dlm-kmp-defaultUpgrade kernel-syms-rtUpgrade dtb-amlogicUpgrade cluster-md-kmp-defaultUpgrade kernel-rt_debug-vdsoUpgrade kernel-devel-azureUpgrade kernel-azure-develUpgrade dtb-armUpgrade kernel-64kb-optionalUpgrade dtb-xilinxUpgrade kernel-defaultUpgrade kernel-64kb-livepatch-develUpgrade dtb-socionextUpgrade gfs2-kmp-64kbUpgrade kernel-debug-livepatch-develUpgrade kernel-devel-rtUpgrade dtb-nvidiaUpgrade dlm-kmp-azureUpgrade kselftests-kmp-rtUpgrade kernel-kvmsmall-develUpgrade kernel-symsUpgrade kernel-macrosUpgrade kernel-docsUpgrade kernel-rt-develUpgrade kernel-default-baseUpgrade dtb-hisiliconUpgrade kernel-zfcpdumpUpgrade dlm-kmp-64kbUpgrade kernel-rt_debug-develUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-default-livepatch-develUpgrade kernel-source-vanillaUpgrade kernel-source-azureUpgrade dtb-alteraUpgrade ocfs2-kmp-azureUpgrade ocfs2-kmp-64kbUpgrade dtb-allwinnerUpgrade dtb-broadcomUpgrade dtb-amazonUpgrade kernel-azure-optionalUpgrade dtb-qcomUpgrade ocfs2-kmp-defaultUpgrade kernel-sourceUpgrade kernel-default-develUpgrade reiserfs-kmp-defaultUpgrade kernel-default-optionalUpgrade dtb-lgUpgrade dtb-appleUpgrade dlm-kmp-rtUpgrade kernel-debug-develUpgrade gfs2-kmp-azureUpgrade kernel-rt-vdsoUpgrade kernel-64kbUpgrade kernel-azure-extraUpgrade dtb-marvellUpgrade cluster-md-kmp-rtUpgrade dtb-renesasUpgrade kernel-rtUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-develUpgrade kernel-docs-htmlUpgrade kernel-default-vdsoUpgrade kernel-64kb-extraUpgrade kernel-rt-livepatchUpgrade cluster-md-kmp-azureUpgrade reiserfs-kmp-64kbUpgrade dtb-sprdUpgrade dtb-exynosUpgrade dtb-amdUpgrade kselftests-kmp-azureUpgrade kselftests-kmp-64kbUpgrade kernel-rt-optionalUpgrade gfs2-kmp-defaultUpgrade cluster-md-kmp-64kbUpgrade kernel-source-rtUpgrade kernel-obs-buildUpgrade dtb-freescaleUpgrade kernel-rt-extraUpgrade kernel-kvmsmall-vdsoUpgrade kernel-default-livepatchUpgrade kernel-debug-vdsoUpgrade kernel-azureUpgrade dtb-caviumUpgrade kernel-syms-azure | Aug 9, 2024 | Apr 28, 2024 |
| Ubuntu | — | Upgrade linux-awsUpgrade linux-gkeop-5.15Upgrade linux-intel-iotgUpgrade linux-aws-5.15Upgrade linux-raspiUpgrade linux-lowlatency-hwe-5.15Upgrade linux-intel-iotg-5.15Upgrade linux-gcp-5.15Upgrade linux-realtimeUpgrade linux-gkeUpgrade linux-riscv-5.15Upgrade linux-kvmUpgrade linux-gcpUpgrade linux-azureUpgrade linux-hwe-5.15Upgrade linux-azure-fdeUpgrade linux-oracleUpgrade linux-nvidiaUpgrade linux-ibmUpgrade linux-azure-5.15Upgrade linux-oracle-5.15Upgrade linux-azure-fde-5.15Upgrade linux-gkeopUpgrade linux-lowlatencyUpgrade linux | Nov 19, 2024 | Apr 28, 2024 |
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