Bug 1223749 (CVE-2024-26990) - VUL-0: CVE-2024-26990: kernel: KVM: x86/mmu: Write-protect L2 SPTEs in TDP MMU when clearing dirty status
Summary: VUL-0: CVE-2024-26990: kernel: KVM: x86/mmu: Write-protect L2 SPTEs in TDP MM...
Status: NEW
Alias: CVE-2024-26990
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Normal
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/403737/
Whiteboard: CVSSv3.1:SUSE:CVE-2024-26990:5.5:(AV:...
Keywords:
Depends on:
Blocks:
 
Reported: 2024-05-02 13:50 UTC by SMASH SMASH
Modified: 2024-07-08 14:42 UTC (History)
2 users (show)

See Also:
Found By: Security Response Team
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description SMASH SMASH 2024-05-02 13:50:37 UTC 
In the Linux kernel, the following vulnerability has been resolved:

KVM: x86/mmu: Write-protect L2 SPTEs in TDP MMU when clearing dirty status

Check kvm_mmu_page_ad_need_write_protect() when deciding whether to
write-protect or clear D-bits on TDP MMU SPTEs, so that the TDP MMU
accounts for any role-specific reasons for disabling D-bit dirty logging.

Specifically, TDP MMU SPTEs must be write-protected when the TDP MMU is
being used to run an L2 (i.e. L1 has disabled EPT) and PML is enabled.
KVM always disables PML when running L2, even when L1 and L2 GPAs are in
the some domain, so failing to write-protect TDP MMU SPTEs will cause
writes made by L2 to not be reflected in the dirty log.

[sean: massage shortlog and changelog, tweak ternary op formatting]

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-26990
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-26990.mbox
https://git.kernel.org/stable/c/cdf811a937471af2d1facdf8ae80e5e68096f1ed
https://git.kernel.org/stable/c/e20bff0f1b2de9cfe303dd35ff46470104a87404
https://git.kernel.org/stable/c/2673dfb591a359c75080dd5af3da484b89320d22
https://www.cve.org/CVERecord?id=CVE-2024-26990
https://bugzilla.redhat.com/show_bug.cgi?id=2278320
Comment 9 Maintenance Automation 2024-06-21 12:31:24 UTC 
SUSE-SU-2024:2135-1: An update that solves 428 vulnerabilities, contains 15 features and has 78 security fixes can now be installed.

Category: security (important)
Bug References: 1012628, 1065729, 1181674, 1187716, 1193599, 1194869, 1207948, 1208593, 1209657, 1213573, 1214852, 1215199, 1216196, 1216358, 1216702, 1217169, 1217384, 1217408, 1217489, 1217750, 1217959, 1218205, 1218336, 1218447, 1218562, 1218779, 1218917, 1219104, 1219170, 1219596, 1219623, 1219834, 1220021, 1220045, 1220120, 1220148, 1220328, 1220342, 1220428, 1220430, 1220569, 1220587, 1220738, 1220783, 1220915, 1221044, 1221276, 1221293, 1221303, 1221375, 1221504, 1221612, 1221615, 1221635, 1221645, 1221649, 1221765, 1221777, 1221783, 1221816, 1221829, 1221830, 1221858, 1222115, 1222173, 1222264, 1222273, 1222294, 1222301, 1222303, 1222304, 1222307, 1222357, 1222366, 1222368, 1222371, 1222378, 1222379, 1222385, 1222422, 1222426, 1222428, 1222437, 1222445, 1222459, 1222464, 1222489, 1222522, 1222525, 1222527, 1222531, 1222532, 1222549, 1222550, 1222557, 1222559, 1222563, 1222585, 1222586, 1222596, 1222606, 1222608, 1222613, 1222615, 1222618, 1222622, 1222624, 1222627, 1222630, 1222635, 1222721, 1222727, 1222769, 1222771, 1222772, 1222775, 1222777, 1222780, 1222782, 1222793, 1222799, 1222801, 1222968, 1223007, 1223011, 1223015, 1223016, 1223020, 1223023, 1223024, 1223030, 1223033, 1223034, 1223035, 1223038, 1223039, 1223041, 1223045, 1223046, 1223051, 1223052, 1223058, 1223060, 1223061, 1223076, 1223077, 1223084, 1223111, 1223113, 1223138, 1223143, 1223187, 1223189, 1223190, 1223191, 1223198, 1223202, 1223285, 1223315, 1223338, 1223369, 1223380, 1223384, 1223390, 1223439, 1223462, 1223532, 1223539, 1223575, 1223590, 1223591, 1223592, 1223593, 1223625, 1223628, 1223629, 1223633, 1223634, 1223637, 1223641, 1223643, 1223649, 1223650, 1223651, 1223652, 1223653, 1223654, 1223655, 1223660, 1223661, 1223663, 1223664, 1223665, 1223666, 1223668, 1223669, 1223670, 1223671, 1223675, 1223677, 1223678, 1223686, 1223692, 1223693, 1223695, 1223696, 1223698, 1223705, 1223712, 1223718, 1223728, 1223732, 1223735, 1223739, 1223741, 1223744, 1223745, 1223747, 1223748, 1223749, 1223750, 1223752, 1223754, 1223757, 1223759, 1223761, 1223762, 1223774, 1223782, 1223787, 1223788, 1223789, 1223790, 1223802, 1223805, 1223810, 1223822, 1223827, 1223831, 1223834, 1223838, 1223869, 1223870, 1223871, 1223872, 1223874, 1223944, 1223945, 1223946, 1223991, 1224076, 1224096, 1224098, 1224099, 1224137, 1224166, 1224174, 1224177, 1224180, 1224181, 1224331, 1224348, 1224423, 1224429, 1224430, 1224432, 1224433, 1224437, 1224438, 1224442, 1224443, 1224445, 1224449, 1224477, 1224479, 1224480, 1224481, 1224482, 1224486, 1224487, 1224488, 1224491, 1224492, 1224493, 1224494, 1224495, 1224500, 1224501, 1224502, 1224504, 1224505, 1224506, 1224507, 1224508, 1224509, 1224511, 1224513, 1224517, 1224519, 1224521, 1224524, 1224525, 1224526, 1224530, 1224531, 1224534, 1224537, 1224541, 1224542, 1224543, 1224546, 1224550, 1224552, 1224553, 1224555, 1224557, 1224558, 1224559, 1224562, 1224565, 1224566, 1224567, 1224568, 1224569, 1224571, 1224573, 1224576, 1224577, 1224578, 1224579, 1224580, 1224581, 1224582, 1224585, 1224586, 1224587, 1224588, 1224592, 1224596, 1224598, 1224600, 1224601, 1224602, 1224603, 1224605, 1224607, 1224608, 1224609, 1224611, 1224613, 1224615, 1224617, 1224618, 1224620, 1224621, 1224622, 1224623, 1224624, 1224626, 1224627, 1224628, 1224629, 1224630, 1224632, 1224633, 1224634, 1224636, 1224637, 1224638, 1224639, 1224640, 1224643, 1224644, 1224645, 1224646, 1224647, 1224648, 1224649, 1224650, 1224651, 1224652, 1224653, 1224654, 1224657, 1224660, 1224663, 1224664, 1224665, 1224666, 1224667, 1224668, 1224671, 1224672, 1224674, 1224675, 1224676, 1224677, 1224678, 1224679, 1224680, 1224681, 1224682, 1224683, 1224685, 1224686, 1224687, 1224688, 1224692, 1224696, 1224697, 1224699, 1224701, 1224703, 1224704, 1224705, 1224706, 1224707, 1224709, 1224710, 1224712, 1224714, 1224716, 1224717, 1224718, 1224719, 1224720, 1224721, 1224722, 1224723, 1224725, 1224727, 1224728, 1224729, 1224730, 1224731, 1224732, 1224733, 1224736, 1224738, 1224739, 1224740, 1224741, 1224742, 1224747, 1224749, 1224763, 1224764, 1224765, 1224766, 1224790, 1224792, 1224793, 1224803, 1224804, 1224866, 1224936, 1224989, 1225007, 1225053, 1225133, 1225134, 1225136, 1225172, 1225502, 1225578, 1225579, 1225580, 1225593, 1225605, 1225607, 1225610, 1225616, 1225618, 1225640, 1225642, 1225692, 1225694, 1225695, 1225696, 1225698, 1225699, 1225704, 1225705, 1225708, 1225710, 1225712, 1225714, 1225715, 1225720, 1225722, 1225728, 1225734, 1225735, 1225736, 1225747, 1225748, 1225749, 1225750, 1225756, 1225765, 1225766, 1225769, 1225773, 1225775, 1225842, 1225945
CVE References: CVE-2023-0160, CVE-2023-47233, CVE-2023-52434, CVE-2023-52458, CVE-2023-52463, CVE-2023-52472, CVE-2023-52483, CVE-2023-52492, CVE-2023-52503, CVE-2023-52591, CVE-2023-52608, CVE-2023-52616, CVE-2023-52618, CVE-2023-52631, CVE-2023-52635, CVE-2023-52640, CVE-2023-52641, CVE-2023-52645, CVE-2023-52652, CVE-2023-52653, CVE-2023-52654, CVE-2023-52655, CVE-2023-52657, CVE-2023-52658, CVE-2023-52659, CVE-2023-52660, CVE-2023-52661, CVE-2023-52662, CVE-2023-52663, CVE-2023-52664, CVE-2023-52667, CVE-2023-52669, CVE-2023-52670, CVE-2023-52671, CVE-2023-52673, CVE-2023-52674, CVE-2023-52675, CVE-2023-52676, CVE-2023-52678, CVE-2023-52679, CVE-2023-52680, CVE-2023-52681, CVE-2023-52683, CVE-2023-52685, CVE-2023-52686, CVE-2023-52687, CVE-2023-52690, CVE-2023-52691, CVE-2023-52692, CVE-2023-52693, CVE-2023-52694, CVE-2023-52695, CVE-2023-52696, CVE-2023-52697, CVE-2023-52698, CVE-2023-52771, CVE-2023-52772, CVE-2023-52860, CVE-2023-52882, CVE-2023-6238, CVE-2023-6270, CVE-2023-6531, CVE-2023-7042, CVE-2024-0639, CVE-2024-21823, CVE-2024-22099, CVE-2024-23848, CVE-2024-24861, CVE-2024-25739, CVE-2024-26601, CVE-2024-26611, CVE-2024-26614, CVE-2024-26632, CVE-2024-26638, CVE-2024-26642, CVE-2024-26643, CVE-2024-26652, CVE-2024-26654, CVE-2024-26656, CVE-2024-26657, CVE-2024-26671, CVE-2024-26673, CVE-2024-26674, CVE-2024-26675, CVE-2024-26679, CVE-2024-26684, CVE-2024-26685, CVE-2024-26692, CVE-2024-26696, CVE-2024-26697, CVE-2024-26704, CVE-2024-26714, CVE-2024-26726, CVE-2024-26731, CVE-2024-26733, CVE-2024-26736, CVE-2024-26737, CVE-2024-26739, CVE-2024-26740, CVE-2024-26742, CVE-2024-26756, CVE-2024-26757, CVE-2024-26760, CVE-2024-267600, CVE-2024-26761, CVE-2024-26764, CVE-2024-26769, CVE-2024-26772, CVE-2024-26773, CVE-2024-26774, CVE-2024-26775, CVE-2024-26779, CVE-2024-26783, CVE-2024-26786, CVE-2024-26791, CVE-2024-26793, CVE-2024-26794, CVE-2024-26802, CVE-2024-26805, CVE-2024-26807, CVE-2024-26815, CVE-2024-26816, CVE-2024-26822, CVE-2024-26828, CVE-2024-26832, CVE-2024-26836, CVE-2024-26844, CVE-2024-26846, CVE-2024-26848, CVE-2024-26853, CVE-2024-26854, CVE-2024-26855, CVE-2024-26856, CVE-2024-26857, CVE-2024-26858, CVE-2024-26860, CVE-2024-26861, CVE-2024-26862, CVE-2024-26866, CVE-2024-26868, CVE-2024-26870, CVE-2024-26878, CVE-2024-26881, CVE-2024-26882, CVE-2024-26883, CVE-2024-26884, CVE-2024-26885, CVE-2024-26898, CVE-2024-26899, CVE-2024-26900, CVE-2024-26901, CVE-2024-26903, CVE-2024-26906, CVE-2024-26909, CVE-2024-26921, CVE-2024-26922, CVE-2024-26923, CVE-2024-26925, CVE-2024-26928, CVE-2024-26932, CVE-2024-26933, CVE-2024-26934, CVE-2024-26935, CVE-2024-26937, CVE-2024-26938, CVE-2024-26940, CVE-2024-26943, CVE-2024-26945, CVE-2024-26946, CVE-2024-26948, CVE-2024-26949, CVE-2024-26950, CVE-2024-26951, CVE-2024-26956, CVE-2024-26957, CVE-2024-26958, CVE-2024-26960, CVE-2024-26961, CVE-2024-26962, CVE-2024-26963, CVE-2024-26964, CVE-2024-26972, CVE-2024-26973, CVE-2024-26978, CVE-2024-26979, CVE-2024-26981, CVE-2024-26982, CVE-2024-26983, CVE-2024-26984, CVE-2024-26986, CVE-2024-26988, CVE-2024-26989, CVE-2024-26990, CVE-2024-26991, CVE-2024-26992, CVE-2024-26993, CVE-2024-26994, CVE-2024-26995, CVE-2024-26996, CVE-2024-26997, CVE-2024-26999, CVE-2024-27000, CVE-2024-27001, CVE-2024-27002, CVE-2024-27003, CVE-2024-27004, CVE-2024-27008, CVE-2024-27013, CVE-2024-27014, CVE-2024-27022, CVE-2024-27027, CVE-2024-27028, CVE-2024-27029, CVE-2024-27030, CVE-2024-27031, CVE-2024-27036, CVE-2024-27046, CVE-2024-27056, CVE-2024-27057, CVE-2024-27062, CVE-2024-27067, CVE-2024-27080, CVE-2024-27388, CVE-2024-27389, CVE-2024-27393, CVE-2024-27395, CVE-2024-27396, CVE-2024-27398, CVE-2024-27399, CVE-2024-27400, CVE-2024-27401, CVE-2024-27405, CVE-2024-27408, CVE-2024-27410, CVE-2024-27411, CVE-2024-27412, CVE-2024-27413, CVE-2024-27416, CVE-2024-27417, CVE-2024-27418, CVE-2024-27431, CVE-2024-27432, CVE-2024-27434, CVE-2024-27435, CVE-2024-27436, CVE-2024-35784, CVE-2024-35786, CVE-2024-35788, CVE-2024-35789, CVE-2024-35790, CVE-2024-35791, CVE-2024-35794, CVE-2024-35795, CVE-2024-35796, CVE-2024-35799, CVE-2024-35800, CVE-2024-35801, CVE-2024-35803, CVE-2024-35804, CVE-2024-35806, CVE-2024-35808, CVE-2024-35809, CVE-2024-35810, CVE-2024-35811, CVE-2024-35812, CVE-2024-35813, CVE-2024-35814, CVE-2024-35815, CVE-2024-35817, CVE-2024-35819, CVE-2024-35821, CVE-2024-35822, CVE-2024-35823, CVE-2024-35824, CVE-2024-35825, CVE-2024-35828, CVE-2024-35829, CVE-2024-35830, CVE-2024-35833, CVE-2024-35834, CVE-2024-35835, CVE-2024-35836, CVE-2024-35837, CVE-2024-35838, CVE-2024-35841, CVE-2024-35842, CVE-2024-35845, CVE-2024-35847, CVE-2024-35849, CVE-2024-35850, CVE-2024-35851, CVE-2024-35852, CVE-2024-35854, CVE-2024-35860, CVE-2024-35861, CVE-2024-35862, CVE-2024-35863, CVE-2024-35864, CVE-2024-35865, CVE-2024-35866, CVE-2024-35867, CVE-2024-35868, CVE-2024-35869, CVE-2024-35870, CVE-2024-35872, CVE-2024-35875, CVE-2024-35877, CVE-2024-35878, CVE-2024-35879, CVE-2024-35883, CVE-2024-35885, CVE-2024-35887, CVE-2024-35889, CVE-2024-35891, CVE-2024-35895, CVE-2024-35901, CVE-2024-35903, CVE-2024-35904, CVE-2024-35905, CVE-2024-35907, CVE-2024-35909, CVE-2024-35911, CVE-2024-35912, CVE-2024-35914, CVE-2024-35915, CVE-2024-35916, CVE-2024-35917, CVE-2024-35921, CVE-2024-35922, CVE-2024-35924, CVE-2024-35927, CVE-2024-35928, CVE-2024-35930, CVE-2024-35931, CVE-2024-35932, CVE-2024-35933, CVE-2024-35935, CVE-2024-35936, CVE-2024-35937, CVE-2024-35938, CVE-2024-35940, CVE-2024-35943, CVE-2024-35944, CVE-2024-35945, CVE-2024-35946, CVE-2024-35947, CVE-2024-35950, CVE-2024-35951, CVE-2024-35952, CVE-2024-35953, CVE-2024-35954, CVE-2024-35955, CVE-2024-35956, CVE-2024-35958, CVE-2024-35959, CVE-2024-35960, CVE-2024-35961, CVE-2024-35963, CVE-2024-35964, CVE-2024-35965, CVE-2024-35966, CVE-2024-35967, CVE-2024-35969, CVE-2024-35971, CVE-2024-35972, CVE-2024-35973, CVE-2024-35974, CVE-2024-35975, CVE-2024-35977, CVE-2024-35978, CVE-2024-35981, CVE-2024-35982, CVE-2024-35984, CVE-2024-35986, CVE-2024-35989, CVE-2024-35990, CVE-2024-35991, CVE-2024-35992, CVE-2024-35995, CVE-2024-35997, CVE-2024-35999, CVE-2024-36002, CVE-2024-36006, CVE-2024-36007, CVE-2024-36009, CVE-2024-36011, CVE-2024-36012, CVE-2024-36013, CVE-2024-36014, CVE-2024-36015, CVE-2024-36016, CVE-2024-36018, CVE-2024-36019, CVE-2024-36020, CVE-2024-36021, CVE-2024-36025, CVE-2024-36026, CVE-2024-36029, CVE-2024-36030, CVE-2024-36032, CVE-2024-36880, CVE-2024-36885, CVE-2024-36890, CVE-2024-36891, CVE-2024-36893, CVE-2024-36894, CVE-2024-36895, CVE-2024-36896, CVE-2024-36897, CVE-2024-36898, CVE-2024-36906, CVE-2024-36918, CVE-2024-36921, CVE-2024-36922, CVE-2024-36928, CVE-2024-36930, CVE-2024-36931, CVE-2024-36936, CVE-2024-36940, CVE-2024-36941, CVE-2024-36942, CVE-2024-36944, CVE-2024-36947, CVE-2024-36949, CVE-2024-36950, CVE-2024-36951, CVE-2024-36955, CVE-2024-36959
Jira References: PED-3184, PED-3311, PED-3535, PED-4486, PED-4593, PED-5062, PED-542, PED-5728, PED-5853, PED-6079, PED-6252, PED-7542, PED-7619, PED-8111, PED-8240
Maintenance Incident: [SUSE:Maintenance:34127](https://smelt.suse.de/incident/34127/)
Sources used:
openSUSE Leap 15.6 (src):
 kernel-syms-azure-6.4.0-150600.8.5.1, kernel-source-azure-6.4.0-150600.8.5.4
Public Cloud Module 15-SP6 (src):
 kernel-syms-azure-6.4.0-150600.8.5.1, kernel-source-azure-6.4.0-150600.8.5.4

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.