[{"vendor":"linux","product":"linux_kernel","defaultStatus":"unknown","cpes":["cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"],"versions":[{"version":"eff73e16ee11","lessThan":"db94f89e1dad","versionType":"custom","status":"affected"}]},{"vendor":"linux","product":"linux_kernel","defaultStatus":"unknown","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"versions":[{"version":"eff73e16ee11","lessThan":"9b00fb12cdc9","versionType":"custom","status":"affected"}]},{"vendor":"linux","product":"linux_kernel","defaultStatus":"unknown","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"versions":[{"version":"eff73e16ee11","lessThan":"248f064af222","versionType":"custom","status":"affected"}]},{"vendor":"linux","product":"linux_kernel","defaultStatus":"unknown","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"versions":[{"version":"5.9","status":"affected"}]},{"vendor":"linux","product":"linux_kernel","defaultStatus":"unknown","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"versions":[{"version":"0","lessThan":"5.9","versionType":"custom","status":"unaffected"}]},{"vendor":"linux","product":"linux_kernel","defaultStatus":"unknown","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"versions":[{"version":"5.10.70","lessThanOrEqual":"5.10.*","versionType":"custom","status":"unaffected"}]},{"vendor":"linux","product":"linux_kernel","defaultStatus":"unknown","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"versions":[{"version":"5.14.9","lessThanOrEqual":"5.14.*","versionType":"custom","status":"unaffected"}]},{"vendor":"linux","product":"linux_kernel","defaultStatus":"unknown","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"versions":[{"version":"5.15","status":"unaffected"}]}]

{"timestamp":"2025-05-07T19:56:20.784493Z","id":"CVE-2021-47369","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}

[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/s390/net/qeth_core_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"eff73e16ee116f6eafa2be48fab42659a27cb453","lessThan":"db94f89e1dadf693c15c2d60de0c34777cea5779","versionType":"git","status":"affected"},{"version":"eff73e16ee116f6eafa2be48fab42659a27cb453","lessThan":"9b00fb12cdc9d8d1c3ffe82a78e74738127803fc","versionType":"git","status":"affected"},{"version":"eff73e16ee116f6eafa2be48fab42659a27cb453","lessThan":"248f064af222a1f97ee02c84a98013dfbccad386","versionType":"git","status":"affected"},{"version":"b2400fe7e1011c5f3dc2268e8382082465b1c8a2","versionType":"git","status":"affected"},{"version":"22697ca855c06a4a1264d5651542b7d98870a8c4","versionType":"git","status":"affected"},{"version":"5.7.16","lessThan":"5.8","versionType":"semver","status":"affected"},{"version":"5.8.2","lessThan":"5.9","versionType":"semver","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/s390/net/qeth_core_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.9","status":"affected"},{"version":"0","lessThan":"5.9","versionType":"semver","status":"unaffected"},{"version":"5.10.70","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.14.9","lessThanOrEqual":"5.14.*","versionType":"semver","status":"unaffected"},{"version":"5.15","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]

OR
          *cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*
          *cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.14.9
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.7.16 up to (excluding) 5.8
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.8.2 up to (excluding) 5.10.70

CVE: https://git.kernel.org/stable/c/248f064af222a1f97ee02c84a98013dfbccad386 Types: Patch

CVE: https://git.kernel.org/stable/c/9b00fb12cdc9d8d1c3ffe82a78e74738127803fc Types: Patch

CVE: https://git.kernel.org/stable/c/db94f89e1dadf693c15c2d60de0c34777cea5779 Types: Patch

kernel.org: https://git.kernel.org/stable/c/248f064af222a1f97ee02c84a98013dfbccad386 Types: Patch

kernel.org: https://git.kernel.org/stable/c/9b00fb12cdc9d8d1c3ffe82a78e74738127803fc Types: Patch

kernel.org: https://git.kernel.org/stable/c/db94f89e1dadf693c15c2d60de0c34777cea5779 Types: Patch

https://git.kernel.org/stable/c/248f064af222a1f97ee02c84a98013dfbccad386

https://git.kernel.org/stable/c/9b00fb12cdc9d8d1c3ffe82a78e74738127803fc

https://git.kernel.org/stable/c/db94f89e1dadf693c15c2d60de0c34777cea5779

CISA-ADP AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA-ADP CWE-476

In the Linux kernel, the following vulnerability has been resolved:

s390/qeth: fix NULL deref in qeth_clear_working_pool_list()

When qeth_set_online() calls qeth_clear_working_pool_list() to roll
back after an error exit from qeth_hardsetup_card(), we are at risk of
accessing card->qdio.in_q before it was allocated by
qeth_alloc_qdio_queues() via qeth_mpc_initialize().

qeth_clear_working_pool_list() then dereferences NULL, and by writing to
queue->bufs[i].pool_entry scribbles all over the CPU's lowcore.
Resulting in a crash when those lowcore areas are used next (eg. on
the next machine-check interrupt).

Such a scenario would typically happen when the device is first set
online and its queues aren't allocated yet. An early IO error or certain
misconfigs (eg. mismatched transport mode, bad portno) then cause us to
error out from qeth_hardsetup_card() with card->qdio.in_q still being
NULL.

Fix it by checking the pointer for NULL before accessing it.

Note that we also have (rare) paths inside qeth_mpc_initialize() where
a configuration change can cause us to free the existing queues,
expecting that subsequent code will allocate them again. If we then
error out before that re-allocation happens, the same bug occurs.

Root-caused-by: Heiko Carstens <[email protected]>

kernel.org https://git.kernel.org/stable/c/248f064af222a1f97ee02c84a98013dfbccad386 [No types assigned]

kernel.org https://git.kernel.org/stable/c/9b00fb12cdc9d8d1c3ffe82a78e74738127803fc [No types assigned]

kernel.org https://git.kernel.org/stable/c/db94f89e1dadf693c15c2d60de0c34777cea5779 [No types assigned]