{"cve":"CVE-2025-37928","nvd":{"published":"2025-05-20T16:15:29.363","modified":"2026-06-17T09:15:42.953","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm-bufio: don't schedule in atomic context\n\nA BUG was reported as below when CONFIG_DEBUG_ATOMIC_SLEEP and\ntry_verify_in_tasklet are enabled.\n[  129.444685][  T934] BUG: sleeping function called from invalid context at drivers/md/dm-bufio.c:2421\n[  129.444723][  T934] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 934, name: kworker/1:4\n[  129.444740][  T934] preempt_count: 201, expected: 0\n[  129.444756][  T934] RCU nest depth: 0, expected: 0\n[  129.444781][  T934] Preemption disabled at:\n[  129.444789][  T934] [<ffffffd816231900>] shrink_work+0x21c/0x248\n[  129.445167][  T934] kernel BUG at kernel/sched/walt/walt_debug.c:16!\n[  129.445183][  T934] Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP\n[  129.445204][  T934] Skip md ftrace buffer dump for: 0x1609e0\n[  129.447348][  T934] CPU: 1 PID: 934 Comm: kworker/1:4 Tainted: G        W  OE      6.6.56-android15-8-o-g6f82312b30b9-debug #1 1400000003000000474e5500b3187743670464e8\n[  129.447362][  T934] Hardware name: Qualcomm Technologies, Inc. Parrot QRD, Alpha-M (DT)\n[  129.447373][  T934] Workqueue: dm_bufio_cache shrink_work\n[  129.447394][  T934] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[  129.447406][  T934] pc : android_rvh_schedule_bug+0x0/0x8 [sched_walt_debug]\n[  129.447435][  T934] lr : __traceiter_android_rvh_schedule_bug+0x44/0x6c\n[  129.447451][  T934] sp : ffffffc0843dbc90\n[  129.447459][  T934] x29: ffffffc0843dbc90 x28: ffffffffffffffff x27: 0000000000000c8b\n[  129.447479][  T934] x26: 0000000000000040 x25: ffffff804b3d6260 x24: ffffffd816232b68\n[  129.447497][  T934] x23: ffffff805171c5b4 x22: 0000000000000000 x21: ffffffd816231900\n[  129.447517][  T934] x20: ffffff80306ba898 x19: 0000000000000000 x18: ffffffc084159030\n[  129.447535][  T934] x17: 00000000d2b5dd1f x16: 00000000d2b5dd1f x15: ffffffd816720358\n[  129.447554][  T934] x14: 0000000000000004 x13: ffffff89ef978000 x12: 0000000000000003\n[  129.447572][  T934] x11: ffffffd817a823c4 x10: 0000000000000202 x9 : 7e779c5735de9400\n[  129.447591][  T934] x8 : ffffffd81560d004 x7 : 205b5d3938373434 x6 : ffffffd8167397c8\n[  129.447610][  T934] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffffffc0843db9e0\n[  129.447629][  T934] x2 : 0000000000002f15 x1 : 0000000000000000 x0 : 0000000000000000\n[  129.447647][  T934] Call trace:\n[  129.447655][  T934]  android_rvh_schedule_bug+0x0/0x8 [sched_walt_debug 1400000003000000474e550080cce8a8a78606b6]\n[  129.447681][  T934]  __might_resched+0x190/0x1a8\n[  129.447694][  T934]  shrink_work+0x180/0x248\n[  129.447706][  T934]  process_one_work+0x260/0x624\n[  129.447718][  T934]  worker_thread+0x28c/0x454\n[  129.447729][  T934]  kthread+0x118/0x158\n[  129.447742][  T934]  ret_from_fork+0x10/0x20\n[  129.447761][  T934] Code: ???????? ???????? ???????? d2b5dd1f (d4210000)\n[  129.447772][  T934] ---[ end trace 0000000000000000 ]---\n\ndm_bufio_lock will call spin_lock_bh when try_verify_in_tasklet\nis enabled, and __scan will be called in atomic context.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":[],"references":["https://git.kernel.org/stable/c/69a37b3ba85088fc6b903b8e1db7f0a1d4d0b52d","https://git.kernel.org/stable/c/a3d8f0a7f5e8b193db509c7191fefeed3533fc44","https://git.kernel.org/stable/c/a99f5bf4f7197009859dbce14c12f8e2ce5a5a69","https://git.kernel.org/stable/c/c8c83052283bcf2fdd467a33d1d2bd5ba36e935a","https://git.kernel.org/stable/c/f45108257280e0a1cc951ce254853721b40c0812"],"products":["debian:debian_linux","linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:01:57.636215869+00:00"},"epss":{"cve":"CVE-2025-37928","score":0.00736,"percentile":0.5447,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}