{"id":"DEBIAN-CVE-2026-74717","details":"In the Linux kernel, the following vulnerability has been resolved:  net/mlx5: fw_tracer, return NULL on create error  Tracer creation can fail by returning either NULL or ERR_PTR. The return value is stored without a check on the device, and users treat ERR_PTR and NULL the same way. This also causes a crash in the core dump logic, which is missing the ERR_PTR check and ends up dereferencing it, as shown in the trace below.  Switch tracer creation to return NULL on failure only, so callers only need a single NULL check.    Internal error: Oops: 0000000096000006 [#1]  SMP   Modules linked in: mlx5_ib ib_uverbs ib_core ipv6 mlx5_core   CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.19.7 #1 PREEMPT(none)   Workqueue: mlx5_health0001:01:00.0 mlx5_fw_reporter_err_work [mlx5_core]   pstate: a3400009 (NzCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)   pc : mlx5_fw_tracer_trigger_core_dump_general+0x58/0xe0 [mlx5_core]   lr : mlx5_fw_tracer_trigger_core_dump_general+0x40/0xe0 [mlx5_core]   sp : ffff800081cf3c40   x29: ffff800081cf3c90 x28: 0000000000000000 x27: 0000000000000000   x26: ffff000080018828 x25: 0000000000000000 x24: ffff000080304a05   x23: ffff800081cf3d80 x22: ffff0000847e01a0 x21: 0000000000000000   x20: ffff0000847e01a0 x19: ffffffffffffffa1 x18: ffff80008310bbf0   x17: ffff800080119650 x16: ffff80008010df54 x15: ffff80008010d4ac   x14: ffff800079c202e4 x13: ffff80008002fe60 x12: ffff800080119650   x11: ffff80008010df54 x10: ffff80008010d4ac x9 : ffff800079c203d8   x8 : ffff800081cf3c88 x7 : 0000000000000000 x6 : 0000000000000000   x5 : 0000000000000000 x4 : 0000000000000008 x3 : 0000000000000030   x2 : 0000000000000008 x1 : 0000000000000000 x0 : 00000000c5c4000e   Call trace:    mlx5_fw_tracer_trigger_core_dump_general+0x58/0xe0 [mlx5_core] (P)    mlx5_fw_reporter_dump+0x30/0x2e0 [mlx5_core]    devlink_health_do_dump+0x9c/0x160    devlink_health_report+0x1c0/0x288    mlx5_fw_reporter_err_work+0xac/0xc0 [mlx5_core]    process_one_work+0x15c/0x3d8    worker_thread+0x18c/0x320    kthread+0x148/0x228    ret_from_fork+0x10/0x20   Code: b9400000 5ac00800 7a401800 540003ca (3940a260)   ---[ end trace 0000000000000000 ]---   Kernel panic - not syncing: Oops: Fatal exception   SMP: stopping secondary CPUs   Kernel Offset: disabled   CPU features: 0x000000,00078031,75fce5a1,35fffe67   Memory Limit: none   ---[ end Kernel panic - not syncing: Oops: Fatal exception ]---","modified":"2026-09-19T22:02:31.217460555Z","published":"2026-08-22T16:16:46.570Z","upstream":["CVE-2026-74717"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-74717"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.187-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.112-1","6.1.115-1","6.1.119-1","6.1.123-1","6.1.124-1","6.1.128-1","6.1.129-1","6.1.133-1","6.1.135-1","6.1.137-1","6.1.139-1","6.1.140-1","6.1.147-1","6.1.148-1","6.1.153-1","6.1.158-1","6.1.159-1","6.1.162-1","6.1.164-1","6.1.170-1","6.1.170-2","6.1.170-3","6.1.172-1","6.1.174-1","6.1.176-1","6.1.177-1","6.1.180-1","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","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not 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