CVE-2026-98388
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
exec: do_close_on_exec() before taking exec_update_lock
In the Linux kernel, the following vulnerability has been resolved: exec: do_close_on_exec() before taking exec_update_lock do_close_on_exec() currently happens while holding the exec_update_lock, which is used in a lot of places that access process state to synchronize access checks. I recently added another such use of exec_update_lock, causing a regression. do_close_on_exec() can block waiting for a reply from a filesystem. That means a hung filesystem can block codepaths that use exec_update_lock; and it also means that a FUSE filesystem which attempts to inspect the calling process can deadlock. To avoid such problems, move do_close_on_exec() before the exec_update_lock is taken, but after the FD table has been copied if necessary. I have looked through all the calls between the old and new position of the do_close_on_exec() call; there seems to be no file descriptor table access in between.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| ae1e630bcaac739f625822078edbaea98366930d | affected | git | 955973fff4a36d39a848b00cac1706863f568fe1 | Unavailable | None listed |
| d54f14655fd7d7b293698a8b6918563c4c0465e7 | affected | git | 550feab5b01000ab314868b62211fb3ddfd600e8 | Unavailable | None listed |
| bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9 | affected | git | 5aacc19ba2b1faf84c4a2f2cf9a1784e03d1ff38 | Unavailable | None listed |
| 7456ae990a9738962b33146916fabca62ae3d4e0 | affected | git | 3feb4020bfb7ccf0d347f27051639d25e19cd65d | Unavailable | None listed |
| 4bfe8c481846cee52473a2f7d7b30ee8e6749fc4 | affected | git | 0d86cd6b709c39216e6ee5ea8f0fc4242bbb2b53 | Unavailable | None listed |
| f9b4b03ccc9c69bf7f7298d4559906ebea7143b3 | affected | git | 19ddef61ee0a49782a60f8f497e50597ad5de2da | Unavailable | None listed |
| 6650527444dadc63d84aa939d14ecba4fadb2f69 | affected | git | 63be3d8511bdafa095cd14a393cbf3c58dbbb928 | Unavailable | None listed |
| 6650527444dadc63d84aa939d14ecba4fadb2f69 | affected | git | e780259b54e618ceb4763fbc21314acf3565e813 | Unavailable | None listed |
| c1cfd63326f5d09999134e9052c353faf738286e | affected | git | Unavailable | Unavailable | None listed |
| 5.10.261 | affected | semver | 5.10.271 | Unavailable | None listed |
| 5.15.212 | affected | semver | 5.15.222 | Unavailable | None listed |
| 6.1.178 | affected | semver | 6.1.189 | Unavailable | None listed |
| 6.6.145 | affected | semver | 6.6.158 | Unavailable | None listed |
| 6.12.97 | affected | semver | 6.12.111 | Unavailable | None listed |
| 6.18.40 | affected | semver | 6.18.53 | Unavailable | None listed |
| 7.1.4 | affected | semver | 7.2 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 7.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 7.2 | Unavailable | None listed |
| 5.10.271 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.222 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.189 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.158 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.111 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.53 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.7 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |