From: Alex Zenla alex@edera.dev
stable inclusion from stable-v4.19.325 commit 692eb06703afc3e24d889d77e94a0e20229f6a4a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBEDPA CVE: CVE-2024-56704
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit e43c608f40c065b30964f0a806348062991b802d ]
Kernel logs indicate an IRQ was double-freed.
Pass correct device ID during IRQ release.
Fixes: 71ebd71921e45 ("xen/9pfs: connect to the backend") Signed-off-by: Alex Zenla alex@edera.dev Signed-off-by: Alexander Merritt alexander@edera.dev Signed-off-by: Ariadne Conill ariadne@ariadne.space Reviewed-by: Juergen Gross jgross@suse.com Message-ID: 20241121225100.5736-1-alexander@edera.dev [Dominique: remove confusing variable reset to 0] Signed-off-by: Dominique Martinet asmadeus@codewreck.org Signed-off-by: Sasha Levin sashal@kernel.org (cherry picked from commit 692eb06703afc3e24d889d77e94a0e20229f6a4a) Signed-off-by: Ze Zuo zuoze1@huawei.com --- net/9p/trans_xen.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/9p/trans_xen.c b/net/9p/trans_xen.c index 8e158f09cba8..4096cfc7efc6 100644 --- a/net/9p/trans_xen.c +++ b/net/9p/trans_xen.c @@ -297,7 +297,7 @@ static void xen_9pfs_front_free(struct xen_9pfs_front_priv *priv) if (!priv->rings[i].intf) break; if (priv->rings[i].irq > 0) - unbind_from_irqhandler(priv->rings[i].irq, priv->dev); + unbind_from_irqhandler(priv->rings[i].irq, ring); if (priv->rings[i].data.in) { for (j = 0; j < (1 << XEN_9PFS_RING_ORDER); j++) { grant_ref_t ref;