CVE-2025-21988
published 2025-04-02CVE-2025-21988: In the Linux kernel, the following vulnerability has been resolved: fs/netfs/read_collect: add to next->prev_donated If multiple subrequests donate data to the…
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.36%
28.3th percentile
In the Linux kernel, the following vulnerability has been resolved:
fs/netfs/read_collect: add to next->prev_donated
If multiple subrequests donate data to the same "next" request
(depending on the subrequest completion order), each of them would
overwrite the `prev_donated` field, causing data corruption and a
BUG() crash ("Can't donate prior to front").
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.12.20-1 (forky) | linux 6.12.20-1 (forky) |
| linux | linux | — | — |
| linux | linux | >= ee4cdf7ba857a894ad1650d6ab77669cbbfa329e < 62b9ad7e52d4777f7e775ee1f0ad2452f6041024 | 62b9ad7e52d4777f7e775ee1f0ad2452f6041024 |
| linux | linux | >= ee4cdf7ba857a894ad1650d6ab77669cbbfa329e < e25cec3b76aba47a49138d2162fc809c6cd49c9e | e25cec3b76aba47a49138d2162fc809c6cd49c9e |
| linux | linux | >= ee4cdf7ba857a894ad1650d6ab77669cbbfa329e < e2d46f2ec332533816417b60933954173f602121 | e2d46f2ec332533816417b60933954173f602121 |
| linux | linux_kernel | >= 0 < 6.12.20-1 | 6.12.20-1 |
| linux | linux_kernel | >= 0 < 6.12.20-1 | 6.12.20-1 |
| linux | linux_kernel | >= 6.12 < 6.12.20 | 6.12.20 |
| linux | linux_kernel | >= 6.13 < 6.13.8 | 6.13.8 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
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Red Hat
kernel: fs/netfs/read_collect: add to next->prev_donated
vendor_redhat·2025-04-02·CVSS 5.5
CVE-2025-21988 [MEDIUM] CWE-99 kernel: fs/netfs/read_collect: add to next->prev_donated
kernel: fs/netfs/read_collect: add to next->prev_donated
In the Linux kernel, the following vulnerability has been resolved:
fs/netfs/read_collect: add to next->prev_donated
If multiple subrequests donate data to the same "next" request
(depending on the subrequest completion order), each of them would
overwrite the `prev_donated` field, causing data corruption and a
BUG() crash ("Can't donate prior to front").
Package: kernel (Red Hat Enterprise Linux 10) - Fix deferred
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 7) - Not affected
Package: kernel (Red Hat Enterprise Linux 8) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 8) - Not affected
Package: k
Debian
CVE-2025-21988: linux - In the Linux kernel, the following vulnerability has been resolved: fs/netfs/re...
vendor_debian·2025·CVSS 5.5
CVE-2025-21988 [MEDIUM] CVE-2025-21988: linux - In the Linux kernel, the following vulnerability has been resolved: fs/netfs/re...
In the Linux kernel, the following vulnerability has been resolved: fs/netfs/read_collect: add to next->prev_donated If multiple subrequests donate data to the same "next" request (depending on the subrequest completion order), each of them would overwrite the `prev_donated` field, causing data corruption and a BUG() crash ("Can't donate prior to front").
Scope: local
bookworm: resolved
bullseye: resolved
forky: resolved (fixed in 6.12.20-1)
sid: resolved (fixed in 6.12.20-1)
trixie: resolved (fixed in 6.12.20-1)
VulDB
Linux Kernel up to 6.13.7 fs/netfs/read_collect prev_donated denial of service (WID-SEC-2025-0698)
vuldb·2026-07-31·CVSS 5.5
CVE-2025-21988 [MEDIUM] Linux Kernel up to 6.13.7 fs/netfs/read_collect prev_donated denial of service (WID-SEC-2025-0698)
A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.13.7. This impacts an unknown function of the file fs/netfs/read_collect. Executing a manipulation of the argument prev_donated can lead to denial of service.
The identification of this vulnerability is CVE-2025-21988. The attack needs to be done within the local network. There is no exploit available.
You should upgrade the affected component.
OSV
CVE-2025-21988: In the Linux kernel, the following vulnerability has been resolved: fs/netfs/read_collect: add to next->prev_donated If multiple subrequests donate da
osv·2025-04-02·CVSS 5.5
CVE-2025-21988 [MEDIUM] CVE-2025-21988: In the Linux kernel, the following vulnerability has been resolved: fs/netfs/read_collect: add to next->prev_donated If multiple subrequests donate da
In the Linux kernel, the following vulnerability has been resolved: fs/netfs/read_collect: add to next->prev_donated If multiple subrequests donate data to the same "next" request (depending on the subrequest completion order), each of them would overwrite the `prev_donated` field, causing data corruption and a BUG() crash ("Can't donate prior to front").
GHSA
GHSA-pvv9-vqm2-p5fx: In the Linux kernel, the following vulnerability has been resolved:
fs/netfs/read_collect: add to next->prev_donated
If multiple subrequests donate
ghsa_unreviewed·2025-04-02
CVE-2025-21988 [MEDIUM] GHSA-pvv9-vqm2-p5fx: In the Linux kernel, the following vulnerability has been resolved:
fs/netfs/read_collect: add to next->prev_donated
If multiple subrequests donate
In the Linux kernel, the following vulnerability has been resolved:
fs/netfs/read_collect: add to next->prev_donated
If multiple subrequests donate data to the same "next" request
(depending on the subrequest completion order), each of them would
overwrite the `prev_donated` field, causing data corruption and a
BUG() crash ("Can't donate prior to front").
No detection rules found.
No public exploits indexed.
2025-04-02
Published