mm/gup: fix gup_pud_range() for dax (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.26 % · percentile 17 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: mm/gup: fix gup_pud_range() for dax For dax pud, pud_huge() returns true on x86. So the function works as long as hugetlb is configured. However, dax doesn't depend on hugetlb. Commit 414fd080d125 ("mm/gup: fix gup_pmd_range() for dax") fixed devmap-backed huge PMDs, but missed devmap-backed huge PUDs. Fix this as well. This fixes the below kernel panic: general protection fault, probably for non-canonical address 0x69e7c000cc478: 0000 [#1] SMP < snip > Call Trace: <TASK> get_user_pages_fast+0x1f/0x40 iov_iter_get_pages+0xc6/0x3b0 ? mempool_alloc+0x5d/0x170 bio_iov_iter_get_pages+0x82/0x4e0 ? bvec_alloc+0x91/0xc0 ? bio_alloc_bioset+0x19a/0x2a0 blkdev_direct_IO+0x282/0x480 ? __io_complete_rw_common+0xc0/0xc0 ? filemap_range_has_page+0x82/0xc0 generic_file_direct_write+0x9d/0x1a0 ? inode_update_time+0x24/0x30 __generic_file_write_iter+0xbd/0x1e0 blkdev_write_iter+0xb4/0x150 ? io_import_iovec+0x8d/0x340 io_write+0xf9/0x300 io_issue_sqe+0x3c3/0x1d30 ? sysvec_reschedule_ipi+0x6c/0x80 __io_queue_sqe+0x33/0x240 ? fget+0x76/0xa0 io_submit_sqes+0xe6a/0x18d0 ? __fget_light+0xd1/0x100 __x64_sys_io_uring_enter+0x199/0x880 ? __context_tracking_enter+0x1f/0x70 ? irqentry_exit_to_user_mode+0x24/0x30 ? irqentry_exit+0x1d/0x30 ? __context_tracking_exit+0xe/0x70 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fc97c11a7be < snip > </TASK> ---[ end trace 48b2e0e67debcaeb ]--- RIP: 0010:internal_get_user_pages_fast+0x340/0x990 < snip > Kernel panic - not syncing: Fatal exception Kernel Offset: disabled
References
- https://git.kernel.org/stable/c/04edfa3dc06ecfc6133a33bc7271298782dee875
- https://git.kernel.org/stable/c/f1cf856123ceb766c49967ec79b841030fa1741f
- https://git.kernel.org/stable/c/3ac29732a2ffa64c7de13a072b0f2848b9c11037
- https://git.kernel.org/stable/c/e06d13c36ded750c72521b600293befebb4e56c5
- https://git.kernel.org/stable/c/fcd0ccd836ffad73d98a66f6fea7b16f735ea920
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2022-53865
- GCVE · GCVE-0-2022-48986
CERT-FR advisories
- CERTFR-2026-AVI-0169 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0129 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0106 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1057 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.9.165 < 4.10cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.14.108 < 4.15cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.19.31 < 4.20cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.0 < 5.4.227cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.159cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.83cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.0.13cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.1:rc8:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 414fd080d125408cb15d04ff4907e1dd8145c8c7 < 04edfa3dc06ecfc6133a33bc7271298782dee875 ; affected 414fd080d125408cb15d04ff4907e1dd8145c8c7 < f1cf856123ceb766c49967ec79b841030fa1741f ; affected 414fd080d125408cb15d04ff4907e1dd8145c8c7 < 3ac29732a2ffa64c7de13a072b0f2848b9c11037 ; affected 414fd080d125408cb15d04ff4907e1dd8145c8c7 < e06d13c36ded750c72521b600293befebb4e56c5 ; affected 414fd080d125408cb15d04ff4907e1dd8145c8c7 < fcd0ccd836ffad73d98a66f6fea7b16f735ea920 ; affected c133d8eb894cb280f331608c6f1962ba9fbfe6b0 |
| Linux · Linux | affected 5.0 ; unaffected 0 < 5.0 ; unaffected 5.4.227 ≤ 5.4.* ; unaffected 5.10.159 ≤ 5.10.* ; unaffected 5.15.83 ≤ 5.15.* ; unaffected 6.0.13 ≤ 6.0.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |