{"id":"DEBIAN-CVE-2024-26675","details":"In the Linux kernel, the following vulnerability has been resolved:  ppp_async: limit MRU to 64K  syzbot triggered a warning [1] in __alloc_pages():  WARN_ON_ONCE_GFP(order \u003e MAX_PAGE_ORDER, gfp)  Willem fixed a similar issue in commit c0a2a1b0d631 (\"ppp: limit MRU to 64K\")  Adopt the same sanity check for ppp_async_ioctl(PPPIOCSMRU)  [1]:   WARNING: CPU: 1 PID: 11 at mm/page_alloc.c:4543 __alloc_pages+0x308/0x698 mm/page_alloc.c:4543 Modules linked in: CPU: 1 PID: 11 Comm: kworker/u4:0 Not tainted 6.8.0-rc2-syzkaller-g41bccc98fb79 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Workqueue: events_unbound flush_to_ldisc pstate: 204000c5 (nzCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)  pc : __alloc_pages+0x308/0x698 mm/page_alloc.c:4543  lr : __alloc_pages+0xc8/0x698 mm/page_alloc.c:4537 sp : ffff800093967580 x29: ffff800093967660 x28: ffff8000939675a0 x27: dfff800000000000 x26: ffff70001272ceb4 x25: 0000000000000000 x24: ffff8000939675c0 x23: 0000000000000000 x22: 0000000000060820 x21: 1ffff0001272ceb8 x20: ffff8000939675e0 x19: 0000000000000010 x18: ffff800093967120 x17: ffff800083bded5c x16: ffff80008ac97500 x15: 0000000000000005 x14: 1ffff0001272cebc x13: 0000000000000000 x12: 0000000000000000 x11: ffff70001272cec1 x10: 1ffff0001272cec0 x9 : 0000000000000001 x8 : ffff800091c91000 x7 : 0000000000000000 x6 : 000000000000003f x5 : 00000000ffffffff x4 : 0000000000000000 x3 : 0000000000000020 x2 : 0000000000000008 x1 : 0000000000000000 x0 : ffff8000939675e0 Call trace:   __alloc_pages+0x308/0x698 mm/page_alloc.c:4543   __alloc_pages_node include/linux/gfp.h:238 [inline]   alloc_pages_node include/linux/gfp.h:261 [inline]   __kmalloc_large_node+0xbc/0x1fc mm/slub.c:3926   __do_kmalloc_node mm/slub.c:3969 [inline]   __kmalloc_node_track_caller+0x418/0x620 mm/slub.c:4001   kmalloc_reserve+0x17c/0x23c net/core/skbuff.c:590   __alloc_skb+0x1c8/0x3d8 net/core/skbuff.c:651   __netdev_alloc_skb+0xb8/0x3e8 net/core/skbuff.c:715   netdev_alloc_skb include/linux/skbuff.h:3235 [inline]   dev_alloc_skb include/linux/skbuff.h:3248 [inline]   ppp_async_input drivers/net/ppp/ppp_async.c:863 [inline]   ppp_asynctty_receive+0x588/0x186c drivers/net/ppp/ppp_async.c:341   tty_ldisc_receive_buf+0x12c/0x15c drivers/tty/tty_buffer.c:390   tty_port_default_receive_buf+0x74/0xac drivers/tty/tty_port.c:37   receive_buf drivers/tty/tty_buffer.c:444 [inline]   flush_to_ldisc+0x284/0x6e4 drivers/tty/tty_buffer.c:494   process_one_work+0x694/0x1204 kernel/workqueue.c:2633   process_scheduled_works kernel/workqueue.c:2706 [inline]   worker_thread+0x938/0xef4 kernel/workqueue.c:2787   kthread+0x288/0x310 kernel/kthread.c:388   ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860","modified":"2026-09-15T09:03:05.060474154Z","published":"2024-04-02T07:15:44.100Z","upstream":["CVE-2024-26675"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-26675"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.82-1"}]}],"versions":["6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-26675.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.7.7-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-26675.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.7.7-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-26675.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}