| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/dp: Fix divide-by-zero regression on DP MST unplug with nouveau\n\nFix a regression when using nouveau and unplugging a StarTech MSTDP122DP\nDisplayPort 1.2 MST hub (the same regression does not appear when using\na Cable Matters DisplayPort 1.4 MST hub). Trace:\n\n divide error: 0000 [#1] PREEMPT SMP PTI\n CPU: 7 PID: 2962 Comm: Xorg Not tainted 6.8.0-rc3+ #744\n Hardware name: Razer Blade/DANA_MB, BIOS 01.01 08/31/2018\n RIP: 0010:drm_dp_bw_overhead+0xb4/0x110 [drm_display_helper]\n Code: c6 b8 01 00 00 00 75 61 01 c6 41 0f af f3 41 0f af f1 c1 e1 04 48 63 c7 31 d2 89 ff 48 8b 5d f8 c9 48 0f af f1 48 8d 44 06 ff <48> f7 f7 31 d2 31 c9 31 f6 31 ff 45 31 c0 45 31 c9 45 31 d2 45 31\n RSP: 0018:ffffb2c5c211fa30 EFLAGS: 00010206\n RAX: ffffffffffffffff RBX: 0000000000000000 RCX: 0000000000f59b00\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\n RBP: ffffb2c5c211fa48 R08: 0000000000000001 R09: 0000000000000020\n R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000023b4a\n R13: ffff91d37d165800 R14: ffff91d36fac6d80 R15: ffff91d34a764010\n FS: 00007f4a1ca3fa80(0000) GS:ffff91d6edbc0000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000559491d49000 CR3: 000000011d180002 CR4: 00000000003706f0\n Call Trace:\n <TASK>\n ? show_regs+0x6d/0x80\n ? die+0x37/0xa0\n ? do_trap+0xd4/0xf0\n ? do_error_trap+0x71/0xb0\n ? drm_dp_bw_overhead+0xb4/0x110 [drm_display_helper]\n ? exc_divide_error+0x3a/0x70\n ? drm_dp_bw_overhead+0xb4/0x110 [drm_display_helper]\n ? asm_exc_divide_error+0x1b/0x20\n ? drm_dp_bw_overhead+0xb4/0x110 [drm_display_helper]\n ? drm_dp_calc_pbn_mode+0x2e/0x70 [drm_display_helper]\n nv50_msto_atomic_check+0xda/0x120 [nouveau]\n drm_atomic_helper_check_modeset+0xa87/0xdf0 [drm_kms_helper]\n drm_atomic_helper_check+0x19/0xa0 [drm_kms_helper]\n nv50_disp_atomic_check+0x13f/0x2f0 [nouveau]\n drm_atomic_check_only+0x668/0xb20 [drm]\n ? drm_connector_list_iter_next+0x86/0xc0 [drm]\n drm_atomic_commit+0x58/0xd0 [drm]\n ? __pfx___drm_printfn_info+0x10/0x10 [drm]\n drm_atomic_connector_commit_dpms+0xd7/0x100 [drm]\n drm_mode_obj_set_property_ioctl+0x1c5/0x450 [drm]\n ? __pfx_drm_connector_property_set_ioctl+0x10/0x10 [drm]\n drm_connector_property_set_ioctl+0x3b/0x60 [drm]\n drm_ioctl_kernel+0xb9/0x120 [drm]\n drm_ioctl+0x2d0/0x550 [drm]\n ? __pfx_drm_connector_property_set_ioctl+0x10/0x10 [drm]\n nouveau_drm_ioctl+0x61/0xc0 [nouveau]\n __x64_sys_ioctl+0xa0/0xf0\n do_syscall_64+0x76/0x140\n ? do_syscall_64+0x85/0x140\n ? do_syscall_64+0x85/0x140\n entry_SYSCALL_64_after_hwframe+0x6e/0x76\n RIP: 0033:0x7f4a1cd1a94f\n Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <41> 89 c0 3d 00 f0 ff ff 77 1f 48 8b 44 24 18 64 48 2b 04 25 28 00\n RSP: 002b:00007ffd2f1df520 EFLAGS: 00000246 ORIG_RAX: 0000000000000010\n RAX: ffffffffffffffda RBX: 00007ffd2f1df5b0 RCX: 00007f4a1cd1a94f\n RDX: 00007ffd2f1df5b0 RSI: 00000000c01064ab RDI: 000000000000000f\n RBP: 00000000c01064ab R08: 000056347932deb8 R09: 000056347a7d99c0\n R10: 0000000000000000 R11: 0000000000000246 R12: 000056347938a220\n R13: 000000000000000f R14: 0000563479d9f3f0 R15: 0000000000000000\n </TASK>\n Modules linked in: rfcomm xt_conntrack nft_chain_nat xt_MASQUERADE nf_nat nf_conntrack_netlink nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xfrm_user xfrm_algo xt_addrtype nft_compat nf_tables nfnetlink br_netfilter bridge stp llc ccm cmac algif_hash overlay algif_skcipher af_alg bnep binfmt_misc snd_sof_pci_intel_cnl snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_pci snd_sof_xtensa_dsp snd_sof_intel_hda snd_sof snd_sof_utils snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_compress snd_sof_intel_hda_mlink snd_hda_ext_core iwlmvm intel_rapl_msr intel_rapl_common intel_tcc_cooling x86_pkg_temp_thermal intel_powerclamp mac80211 coretemp kvm_intel snd_hda_codec_hdmi kvm snd_hda_\n---truncated---" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/gpu/drm/display/drm_dp_helper.c" |
| ], |
| "versions": [ |
| { |
| "version": "c1d6a22b7219bd52c66e9e038a282ba79f04be1f", |
| "lessThan": "828862071a6ca0c52655e6e62ac7abfef3e5c578", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "c1d6a22b7219bd52c66e9e038a282ba79f04be1f", |
| "lessThan": "9cbd1dae842737bfafa4b10a87909fa209dde250", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/gpu/drm/display/drm_dp_helper.c" |
| ], |
| "versions": [ |
| { |
| "version": "6.8", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "6.8", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.8.3", |
| "lessThanOrEqual": "6.8.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.9", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.8", |
| "versionEndExcluding": "6.8.3" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.8", |
| "versionEndExcluding": "6.9" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/828862071a6ca0c52655e6e62ac7abfef3e5c578" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/9cbd1dae842737bfafa4b10a87909fa209dde250" |
| } |
| ], |
| "title": "drm/dp: Fix divide-by-zero regression on DP MST unplug with nouveau", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-26941", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
