gfs2: Fix NULL pointer dereference in gfs2_log_flush
3Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackepss 0.3%
probabilidade de exploração
0.3%top 83% das CVEs
exploração observada
nãonenhuma fonte reporta
In the Linux kernel, the following vulnerability has been resolved:
gfs2: Fix NULL pointer dereference in gfs2_log_flush
In gfs2_jindex_free(), set sdp->sd_jdesc to NULL under the log flush
lock to provide exclusion against gfs2_log_flush().
In gfs2_log_flush(), check if sdp->sd_jdesc is non-NULL before
dereferencing it. Otherwise, we could run into a NULL pointer
dereference when outstanding glock work races with an unmount
(glock_work_func -> run_queue -> do_xmote -> inode_go_sync ->
gfs2_log_flush).
Produtos afetados
Linux · LinuxReferências
https://cert-portal.siemens.com/productcert/html/ssa-019113.htmlhttps://git.kernel.org/stable/c/3429ef5f50909cee9e498c50f0c499b9397116cehttps://git.kernel.org/stable/c/35264909e9d1973ab9aaa2a1b07cda70f12bb828https://git.kernel.org/stable/c/5f6a84cfb33b34610623857bd93919dcb661e29bhttps://git.kernel.org/stable/c/c3c5cfa3170c0940bc66a142859caac07d19b9d6https://git.kernel.org/stable/c/f54f9d5368a4e92ede7dd078a62788dae3a7c6ef