CVE-2025-21728
bpf: Send signals asynchronously if !preemptible
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: bpf: Send signals asynchronously if !preemptible BPF programs can execute in all kinds of contexts and when a program running in a non-preemptible context uses the bpf_send_signal() kfunc, it will cause issues because this kfunc can sleep. Change `irqs_disabled()` to `!preemptible()`.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Feb 27, 2025 |
| Last Updated | May 12, 2026 |
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Affected Versions
Linux / Linux
fd29a0242f86b2d95ad666aa9f92a3d0f7bfdab6 < feba1308bc5e8e04cee751d39fae8a9b407a9034 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 < ce51eab2070e295d298f42a2f1db269cd1b56d55 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 < e306eaaa3d78b462db5f5b11e0171f9d2b6ca3f4 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 < be42a09fe898635b0093c0c8dac1bfabe225c240 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 < eeef8e65041a031bd8a747a392c14b76a123a12c 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 < 78b97783496b454435639937db3303e900a24d3f 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 < 092fc76b7ab4163e008f9cde596a58dad2108260 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 < 87c544108b612512b254c8f79aa5c0a8546e2cc4 7930d01afb7281edd9782971e0cca6fe587c7a7b
Linux / Linux
5.6
References
git.kernel.org: https://git.kernel.org/stable/c/feba1308bc5e8e04cee751d39fae8a9b407a9034 git.kernel.org: https://git.kernel.org/stable/c/ce51eab2070e295d298f42a2f1db269cd1b56d55 git.kernel.org: https://git.kernel.org/stable/c/e306eaaa3d78b462db5f5b11e0171f9d2b6ca3f4 git.kernel.org: https://git.kernel.org/stable/c/be42a09fe898635b0093c0c8dac1bfabe225c240 git.kernel.org: https://git.kernel.org/stable/c/eeef8e65041a031bd8a747a392c14b76a123a12c git.kernel.org: https://git.kernel.org/stable/c/78b97783496b454435639937db3303e900a24d3f git.kernel.org: https://git.kernel.org/stable/c/092fc76b7ab4163e008f9cde596a58dad2108260 git.kernel.org: https://git.kernel.org/stable/c/87c544108b612512b254c8f79aa5c0a8546e2cc4 lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html cert-portal.siemens.com: https://cert-portal.siemens.com/productcert/html/ssa-265688.html cert-portal.siemens.com: https://cert-portal.siemens.com/productcert/html/ssa-082556.html